Ex best friend is mad I won’t go to her wedding?

We were best friends since we were in 5th grade. She started dating her fiancé and he was very abusive. She married him when she got pregnant but he ended up leaving her before the baby was born. He stayed in touch with her and she did whatever he asked, but always refused to get back together. She’d bring her son to see him even though he’d always end up putting him in dangerous situations, she’d send him money, she’d argue with him for hours instead of telling him to mind his business, etc. When they were together he would hit her and even knocked some of her teeth out. She divorced him but still put up with him. I helped her a lot, stayed with her when she was scared, even though I’d have to leave my kid with my mom to go help my friend, I sent money for gas and groceries that I found out was going to her ex, I helped her talk to lawyers after her ex was threatening to get custody. Etc.
Found out last year that she had been hiding the fact that they were back together for about 3 months and when I found out, I blocked her on everything and our other friends did too. I didn’t tell them to, they chose it. She sent me a message last week from her mom’s phone that she was getting married to him again and wanted me there. She said he changed (she’s 23 and he’s 48, I doubt it). She said they’ve saved up for a nice wedding and even got her teeth fixed but I know he dragged her back into bad habits and in pictures I have seen, she looks like she has black eyes or marks on her and I know he’s doing it in front of their son. I even saw him on a dating app my friend sent me a screenshot of. I said no way would I go to her dumbass wedding and I told her she shouldn’t have wasted the doctors time getting her teeth fixed cause he’s just gonna break them again which I feel bad about saying. After things calmed down I asked her please not to marry him because he lives in another city now but when they’re married he’s gonna move in with her. She said she’s going to anyway.
Updates
1 y
Also found out she’s been talking bad about me for “having all her friends block her”. She’s made posts about me claiming I don’t want to go to the wedding because I don’t like him which is true but leaving out the reasons I don’t like him on purpose, so she’s getting people on her side without them knowing the full story. I have a friend that is a therapist who went through a lot of this same stuff, who also helped me when I was in an abusive relationship and I texted this other friend asking
Updates
1 y
Her to talk to her and the fiancé texted me back cussing me out and threatening me. She’s going through with this and she’s very mad at me for something I’m not even sure what. I can’t go support this bs marriage and she seemed like she understood why, I thinks he wants me at the wedding to help pay for stuff. I feel bad about not helping more, is there anything else I can do?
Ex best friend is mad I won’t go to her wedding?
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