So my ex (still married we have kinda started the divorce papers) we separated in March 2022, it’s October. I moved in with my mom in March and moved out in June cuz she got a new boyfriend and moved in with him. It’s been 7 months, and my “ex” has had 5 girlfriends and 3 of them have moved in with him. We share a 2 year old special needs son together. My ex was super abusive to me, physically, mentally, emotionally and financially and he physically beat our dogs and cats. That’s why I moved out. I just found out that my mom invited my ex and his new girlfriend he’s had for 4 weeks over to her house for lunch tomorrow and tried to keep it a secret. I found out because my ex told me. I feel completely betrayed. This new gf of his told him he wasn’t allowed to talk to me or send me pictures of my son or tell me how he’s doing. My ex and I do one week on one week off. And my own mother invites her over for lunch. I also asked my mom multiple times last week if she wanted to go to the pumpkin patch with me and my son or hang out and she said no every time because she would be hanging out with her boyfriend instead. Idk I told her tonight that if she has the lunch tomorrow then it is my final straw and that I will no longer have a relationship with her. I told her I was uncomfortable with it and she told me i was being unfair. My mom also never asks to see my son during the weeks I have him.