BIL's new GF laughed at me and called me weird - AIBU

I agree with this.
You weren't being too sensitive. It was odd behaviour to say nothing and then pipe up on something like that. From your post it comes across like she was trying to take the pee. She was deliberately rude to call you weird and make such a thing of it.

However, I'd give her a second chance to redeem herself for your DB's sake.
But close it down if she starts acting up again. If that is her normal mode then your DB will soon recognise it.

Agree with this take. I think she was rude. If she’d just been nervous and socially awkward I think she’d have realised when nobody started laughing with her, but instead she carried on and gave you the side eye.
Having said that, I’d still give her a second chance, just for DH & BIL’s sake.

I have this vision of OP as some sort of fox sex voyeur, creeping around at night in a grubby Mac, trying to spy on them 'at it'!

Its a very strange noise, and one that would be frightening to a child if they didn't know what it was.

"Hi, I'm soandso and I like fox sex"

😂😂😂😂😂😂😂😂

I've got to go to Aldi shortly OP and fear I'm going to be still giggling to myself round the aisle at that one like a loon!

OFGS

Hyperbole much?

Short explanation to her son. Hardly 'going on'

Job done

Nothing to do with GF

I once went on a quiz night put on by the PTA to raise funds for the school. A group of mums I didn't know invited me to join their quiz team.
God it was an awful, unenjoyable night. I regretted joining their team almost instantly. I can't say this any other way- they were all thick as fuck. I went there to actually partake in a quiz, which I find enjoyable. They were all there to get drunk and make the most stupid schoolgirl humour jokes ever, and just be complete dickheads all night. None of them knew any answers and they all thought it was weird as fuck that I knew anything. One of them even said "OMG you KNOW that" and laughed in my face.
They also said some incredibly stupid stuff regarding the geography questions. "India is in Asia? I thought India was just India!" Was a personal fave.
Grown women in their 30s. Mothers. Unbelievable

I'm sorry, I know I shouldn't say it, but here it is. Thick people are boring and tedious. Thick people that want to laugh at others for not being Thick are the absolute worst and I can not deal with them

I'd give her a wide berth, OP.

Some wildlife noises sound like somebody is being murdered in cold blood - it is fair enough that they are both memorable and that once you learn what they really are, that knowledge tends to stick!

How old is BIL and this girlfriend? If she's pretty young and very townie I could forgive her for not knowing what foxes mating sound like - otherwise I'd think she was a bit thick and/or not remotely interested in the natural world (which I would silently judge her for).

I'd meet up with them again, if only out of a desire to find out if she was that much of a one line wonder all the time! I would be prepared to put it down to nerves, but there are limits...

This. She doesn't seem to be the category of person who can acknowledge....

• people are interested in different things and have different ways of living.

• unless someone is doing something which directly affects you negatively, it's nothing to do with you

• if you're meeting someone for the first time, and want to create a positive relationship, being a bit formal/extra nice/polite is the way to go.

Yes yes, it may be down to "insecurity" or "nerves".

But it's not down to the OP to be her punchbag or teacher.

You do see with this type of person, they somehow remember their manners and are able to be respectful when a High Status Man or someone rich is in view.

It's just other women or people they see as inferior who are have to take the digs and nasty comments.

I wouldn’t like this behaviour either first impressions count. It’s very high school childishness

No - she implied that it was weird that OP knew a basic fact about a very common British mammal. Now to me, HER attitude is weird and rather sad.

She sounds silly, mean, immature and very annoying. And I'm afraid her high-pitched (dare I say....sreechy? Or is that weird of me?) laugh would mean I would not be spending the evening in her company again if I had any choice in the matter/

I have very little patience for contrary feckers and would probably not bother to come out if I felt they were going to go on my tits.

Not the fact itself though, but that it was weird that the OP knew. Which is basically telling you that you must weird to know a thing like that.

Once you've heard foxes on the job you never forget it.

It's a shame you think knowing things is weird - we wouldn't get on.

What on earth is awkward about saying to your son that the loud screeches he can hear is just the Fox mating calls.

I'd not be rushing to socialise with her outside of necessary family obligations. So, family meal at MILs, yes. Couples evening at pub, no. Perhaps in the course of the obligatory meetings she'll improve and you'll warm to her. If so you can always start extra socialising then.

She didn’t say that you were weird she said that a fact you knew was weird.

She sounds like a mean, snide, high school girl, I'd give it a swerve. The older I get the less inclined I feel to waste my time doing thing don't like with people I don't like.

I think she sounds uncurious, a little intellectually challenged, quite small-minded and prurient.
As do those on this thread throwing up their hands in horror at the idea that one might know anything about animals' behaviour and timings, when there are animals everywhere.
Having said that, I'd go to this thing and see how she acts.

Bit rude, bit socially inept, but harmless. I’d probably give her another chance and if she’s rude again give her a clap back.

How old is she?

OP, I suspect she was just socially awkward and I wouldn't really worry about it.

Hmmm - but she repeated the 'weird' jibe a couple of times and made a face.

That's more than socially awkward in my book.

That isn't the behaviour of a nervous person!

She sounds small-minded, ignorant and easily threatened - and very ready to put you down.

I've had this kind of thing - people who know nothing about certain subjects (and, IME, not much about anything much) like to make out that someone who has interests and hobbies - or just plain general knowledge - is weird.

You're not weird, OP. This woman sounds immature, unrewarding as company and very limited and boring. She needs to grow up, learn some manners and some social behaviour. Stand firm!

I love that you were able to calm your son at the same time as educating him. You weren’t being unreasonable at all to say that to him. It was all very straightforward, factual and obviously, exactly what needed to be said to satisfy your young child.
The fact is, SIL needed educating too. She is obvioulsy so hung up about sex that she doesn’t understand that animals mate to reproduce and found it a giggly subject, (as might a very young bunch of school girls), which prompted her stupid response. You were kind not to give her a sharp comment about her immaturity yourself, especially as you weren’t even addressing her.

I think she’s a bit in awe of you and put you down to make herself feel more confident. Quite transparent really.
I would try not to take it personally at all OP. If she starts that trick again, just call her out on it….or quietly say ‘Listen SIL, I don’t mean to upset you and I get we don’t know each other too well as yet, but just so we do understand each other, that sort of comment you just made, could well be taken as offensive so I’d be happier if you could be a bit more considerate as it isn’t helping create a good impression.

What are you on? She was talking to her son about a noise, not showing her guest her collection of fox mating videos

There's a place for everything. Making a guest you've never met before feel uncomfortable isn't the right place.

She sounds a bit young and bit inexperienced, a bit socially awkward .Give her a second chance .