"..MIL came to stay for a couple of nights this weekend... We have a 6 month old baby... We were just having a quiet night in..."
"We had... spirits... Prosecco... tea, coffee, squash and lemonade too..."
"MiL... has just stormed off upset this morning because my husband didn't offer her a larger last night (we don't have any!)... She said 'no bother' at the time to DH so he didn't think any more of it..."
"...All I can hear is her saying (tearfully) 'I don't want to impose' before running for the door, with my husband chasing after her begging her to stay... She turned her phone off and drove off. So DH hasn't been able to get hold of her..."
- I give her a 9/10. It'd be a 10/10, but the cross wobbled a little when she hoisted herself up on it.
Seriously - what absurd, manipulative histrionics.
And your husband bought right into it, rewarding her with his frantic (continued?) pursuit.
- All the shaming of OP and her husband as the 'black holes of fun' for not drinking much, or frequently, is bang out of order.
- Without MIL making OP and her husband feel self-conscious as hosts with her passive-aggressive victim act, I doubt she'd bring up their drinking habits at all.
It's quite clear to me that OP was clear and detailed about how infrequently she and her husband drink in order to illustrate the fact that for them, every single minor social interaction doesn't revolve around alcohol.
And therefore, why they might consider that:
"...spirits... Prosecco... tea, coffee, squash and lemonade too..."
...was an entirely respectable selection from which MIL could choose. One made ever more so by the fact that we're talking about a sleepover at her son and DIL's house.
Not a party.
Not a formal dinner.
Not even a backyard barbecue.
...A quiet night in at her son and DIL's with a 6 month old and some flipping lamb chops, for goodness' sake.
This isn't hosting a vegetarian with only omnivorous foods or plain rice to chose from, or offering a health-conscious type nothing but junk-food and carbonated beverages.
- Everyone who is chastising OP for 'making her MIL feel left out' by breastfeeding in private where she is comfortable is being seriously uncool.
OP owes no-one a front row seat, and anyone who getd their 'feelings hurt' for not getting one is so far beyond ridiculous and entitled that I don't have the words for it.
...5 mins before I'd noticed she'd left the front door open after going for a fag. We're fairly centrally located in a biggish city and this is a security issue!..."
- OP, I could be wrong, but one possible interpretation of your MIL's inane dramatics is that she is struggling with no longer having the central role in her son's life now that he is a grown man with a family.
It's possible that unexpectedly having to 'share' your, your husband and your child's attention due to the impromptu visit from your relatives (on a sleepover weekend where she may have anticipated 'having you to herself'), combined with not feeling like the guest of honour because of the conicidence of your not having the drink she preferred for an unplanned toast, served to bring home to her that you guys have this whole life that doesn't (and shouldn't) revolve around her.
I say this because of the 'don't want to be a bother/not welcome' comments, and because you and your husband - The Children™ - rightly excercising your adult authority to hold her - The Mother™ - to account with respect to the security of your own home seems to have been the final straw for her.
...Reaching this milestone and having your role shift so dramatically is not an easy thing to confront, and I don't think anyone is unsympathetic to that, but it's important that you or your husband don't coddle her or allow her to manipulate you the way she currently is. Especially as your child is six months old - this is not some brand new development.
As long as you guys continue to be kind, her emotions surrounding her changing roles are hers to address and manage, with therapy if need be.
Of course, only you and your husband know if this sort of behaviour is out of character - i.e. the passing sensitivity of an otherwise respectful and supportive person - or if this passive-aggressive, manipulative, martyr-y schtik is actually her usual flavour.