I had my hen do 3 weeks ago and my partners sister got drunk, made the whole night about herself and even sat in front of my mum saying she would have my kids overnight so me and her brother could have sex on our wedding night (we're getting married abroad). Long story short she got home and blamed the drama on their cousin who was also at my hen do and was the one trying to calm her down so the night wasn't ruined. After about a week I'd had no apology or explanation from SIL so my partner called her and said maybe it's worth apologising however he said when he spoke to her about it she wasn't the slightest bit bothered. She sent me a half ass apology text. The kind where its like "apparently I did something I didn't realise so I'm sorry for whatever happened".
Back story. I've never liked his sister. She's a real drama queen, makes everything into a big deal, plays the mental health card over and over and she's a massive liar. She also never takes responsibility for her own actions and blames everyone else. Personally I believe she's a narcissist but that's just my opinion. Despite how I feel about her I've always tried with her for my partners sake. Anyway I replied to her message and said she'd made a fool out of herself and blamed it on everyone else like she always does. I said we were taking space from her and the drama she creates and that her behaviour is toxic and she needs to knock the drink on the head and do some self reflection. She then text my partner saying she wasn't coming to the wedding.
That evening his mum text me having a go and I just told her how this could have all been avoided if SIL had just apologised and that they are enabling her behaviour by never holding her accountable. The next day the SIL blocked me and a few days later the MIL blocks me too. I then left their family group chat (his sister left the morning of the hen do. Just to add she didn't come down for breakfast or say goodbye which I believe is to save face from how she was acting the night before)
My partner doesn't do confrontation. He would rather brush it under the carpet and I'm struggling with that. He isn't going out his way to make conversation with them but he will reply. Yesterday he briefly saw a message from his mum and thought they would be asking to see the kids so he told me he was happy to take the kids alone. Turns out she just wanted a picture of them (she hasn't seen them in over 3 weeks and this is really common for her. She doesn't bother with our kids at all) but it's got me thinking today how shitty it is he's willing to go over there without me with all this going on and just play happy families.
His mum hasn't reached out to him since the hen do and his entire family are acting like nothings happened. They are all blaming the cousin for the drama that night and now I'm the bad guy for upsetting the SIL. I've spoken to my partner about plans going forward but doesn't really wanna talk about it as he's struggling because of the position he's in but we need to figure something out.
So what should I do about the wedding that's literally in 55 days? What happens then because currently his family aren't speaking to me (his mum, dad and sister who are the ones coming. I saw his cousin the other day, we are fine).
My concern is I don't want my wedding day ruined. They've paid to go abroad and to watch us get married but I kinda think well you can still go on your holiday without coming to the wedding. All I can think is how awkward it's going to be. Regardless of SIL there's so much tension between the MIL and myself now especially as she felt the need to block me. I just don't want my wedding day ruined.
My partner says he has my back and he knows what his sister is like. He's even said he isn't bothered if they come to the wedding but I know he's not going to agree if I say I don't want them there. Maybe he will agree I don't know but it's so techy to talk about all this at the minute. Going forward after the wedding I want nothing to do with them but how do I approach the wedding? Like I say it's literally 55 days away.
(sorry its so long)