Annoying mother in law

[Beachlover18]

Bit of a long one, but I don't have many people to vent to.
I don't see my family they've moved away any way myself and my other half have been together for 13 years and finally on Christmas eve he proposed!! It's something that i dreamed of forever! .
My fiance parents have been separated for about 16 years now but they are friends still, they never married so she has a different surname any way after we got engaged she never got a card or anything, I've been on cloud 9 since getting engaged but his Mum and Dad don't seem bothered at all, but my fiance got me a mug and it said on it future mrs........ then what my surname will be and my daughters have been so excited I will have the same surname as them.
This week my mother in law decides to announce she's changing her name via deed poll, I know this may sound pathetic but I'm annoyed by it I've waited so long I've wanted to enjoy engagement etc AIBU that I'm annoyed about it?

How does that stop you enjoying your engagement? I’m genuinely puzzled.

It makes her look batshit, to be honest. It wouldn't bother me.

Are you saying she has spent your fiancees entire life as Miss Jones, whilst his dad was Mr Smith? And that they split up 16 years ago - but now that your bf is intending to make you Mrs Smith she's suddenly decided to change her name via deed poll to Mrs Smith?

That's not annoying, mate. That's hysterically funny.

Yes, I’d think it was hilarious. If she thinks she’s got one over on you she may do it again with something else so don’t let her know it’s bothered you. Enjoy your engagement and ignore it.
Congratulations! 🍾

I don’t really understand. She is changing her surname to now be the same as her son?

Does that affect your happiness about getting married? I can’t say this would bother me what she called herself!

Congratulations, though, when is the wedding?

Refer to her as the second Mrs Smith and laugh.

How does that stop you enjoying your engagement?

So she'll be Miss Smith? How pathetic!

Everyone will just assume your MIL is batshit and crazy and see her for what she is, don’t worry about it.

Not sure how this affects your happiness…🙄

Say ‘What are you doing that for Jane?? You and Mike split up 16 years ago and were never married anyway, why do you yearn to be Mrs Smith now? To have the same name as your 35 year old son???

She needs to have a good answer as everyone in her circle will say ‘what the fuck are you doing that for?’ Has your fiancé’s Dad got a new partner? If so, it’ll go down like a sack of spuds with her! LOL

It’s almost like she’s threatened by you, but if you’ve been with your partner 13 years, it’s not like you’re new on the scene.

😂😂😂😂 Hilarious and mental.
She wouldn't be Mrs though- that will be you. She would either be Miss X or Ms X since she isn't married.
You'll still be the only Mrs X and correct her everytime 😂😂😂 It will annoy her.

I dunno...is she normally okay? Do you get on well with her?

I don't think changing her surname is a big deal, people seem to do it a lot.
Maybe she just wants to feel part of the gang and thought it was a nice idea.

I'm not sure how it affects you?