Apologies it's a long one with much back story but I need some wise Mumsnet advice so I'm taking the plunge in AIBU even though I know I am being fully unreasonable!
My DH have had a tough few years. Infertility problems, multiple rounds of IVF. Multiple losses until we finally welcomed our DD in 2019. She was very premature and spent a long time in NICU but is absolutely fine now and we adore her.
Since she has been born we have also moved 4 times in 2 and a half years for my DH's work and several relocations due to this. However last autumn we finally sold our hugely impractical for a toddler house and have bought a new place which we absolutely love. It suits us perfectly and our DD is thriving here. It feels like after so many stressful years we are all happy and settled.
During this time DH has also gone low contact with his DM. They have had issues in the past but she was particularly unpleasant to me during my pregnancy and really upset him when DD was born/a baby (have posted about this before and got great advice then). Although he is LC we are all cordial and do meet up a couple of times a year or pre-covid when there was a big family gathering. To date all seems fine and when we do meet up we are polite and friendly and everyone seems to get along. I've made my peace with how she behaved and although I wouldn't choose to go on holiday etc with her we all get on fine when we do meet up.
So onto this weekend. We were all due to meet up for an Easter gathering. Last week it was cancelled as it appears that MIL has fallen out with both DH's Brother and Sister, (MIL's two other DC) and their families so they have both decided to go temporarily NC with her. I don't know the details of either falling out, I just know that it was for different reasons and the reasons were sufficient enough for DH's siblings to decide that they cannot meet up with MIL and do not want to do so for the near future.
None of this would affect me but MIL phoned DH last week (coincidentally) to tell him that she has now decided to spend more time with us and that we are to give her dates when we are free so she can come and see our new house and stay with us for a weekend.
This is where IABU. My reaction to this was No, Nope, Not Happening. I do not want her in this house. Ever. It felt absolutely primal and I cannot understand my reaction or be rational about it. It's definitely not the house. We have had people visit and stay and I've been really happy to see them. It's definitely not having MIL to stay. She's stayed in all of our previous houses and I've not had an issue with it and it's not about not wanting to see her. I wouldn't be ecstatic about seeing her but I'd quite happily go for a day out if planned.
So what is it wise Mumsnetters and how do I get past this? My poor DH who has happily welcomed and hosted my family and all of his other family in this house (siblings and their families plus FIL and Step MIL) is now trying to get me to agree to dates because he has no reason to be anything but happy that she's finally initiated some contact and whilst my head is saying just agree, I open my mouth and Nope Never comes out. I know IABU so what can I do?