My husband never had an issue with my cousin, Alex, until he started dating his younger sister, Lily. We’ve known about them dating for less than 2 months and my husband went from being friendly with him to treating him like complete shit the minute he found out. It’s pretty obvious that both my husband and his family think Alex isn’t good enough for Lily and maybe I’m sensitive because my own older brother acted like I wasn’t good enough for my husband (they’re best friends) but it makes me so angry that they won’t even give Alex a chance. Yesterday I was watching a movie with Alex while my husband was out with his friends. He came home early and a few of his friends, including my brother, came back with him. As soon as he saw Alex he asked me why he was here and implied he should get out. Alex doesn’t want to cause issues for me so he just laughs my husband’s rudeness off but he quickly left. I didn’t want him to go so I was really upset and angry with my husband. Usually, I wouldn’t argue with him in front of others but I couldn’t hold it in and I asked him why he did that. He was acting like he didn’t do anything and my brother was siding with him so I just snapped and asked my husband what makes him so special that it’s okay for him to be in a relationship with me but it’s not okay for my cousin to date Lily. He didn’t actually respond but I could see he was angry at me for comparing them but my brother kept defending him and saying it was completely different. I know it was childish but I’m so sick of my brother always holding my husband on a pedestal even against family so I told him to get out of my house. This morning my husband told me not to compared him to Alex again but now he’s acting like we never had a fight even though he was still angry in the morning. AITA?