I am struggling with feelings of betrayal from my mom and sister. My ex and I divorced December 2019. It was a nasty divorce and he has taken me back to court 3 times since then and keeps trying to find ways to make things difficult. He tries to gaslight me and exhibits the traits of a narcissist. We have 2 girls (14, 11). It has been very hard on them as well, especially since they know the things he says and does to make me feel bad. We live far from our families, and he requested a 2 week vacation this summer to visit the family and friends. I have talked with my mom and sister about the things he has done and how hurt I am and how hard it has been. They said they were excited to see the girls when they came to town. I have made it clear in the past that I don't think it is right for them to spend time with my Ex. They HATED him when we were married and always said they hoped we would divorce and he was an awful person. Fast forward to my girls coming back and they told me that he stayed at my mom's house with them and my sister came over and they were all having a fun and laughing together. I told my mom and sister how I felt and they just brushed it off. Am I overreacting to my family suddenly welcoming him with open arms? I feel so lost and alone that they would do this. I was told that the girls were staying there and my ex was staying with friends, so I was lied to as well.