I hate my best friends boyfriend

Their relationship is completely unhealthy in my opinion. They have been dating for three months and living together for two months. When I went to visit her I found out that she cries almost every day because of him.

One day we were all skating in the middle of the night right when we were about to leave he play wrestled with her and he actually hurt her he didn’t apologize but he did say oh it’s OK she’ll come to me or something stupid like that. Because she got upset that he didn’t apologize he ran into the neighborhoods that we didn’t know so we spent a good 20 minutes looking for him in the middle of the night. 

She’s completely attached to him even she knows it’s unhealthy she can’t go anywhere without him can’t do anything without him we should get upset. He makes her act different she’s not herself when she’s with him she’s a completely different person.

He’s really toxic in my opinion whenever we go out as a group and we’re not doing an activity he enjoys he’s upset and because he’s upset she’s trying to comfort him and can’t enjoy the activity. Sometimes it feels like he’s using her. This is her first relationship she might be happy now but he’s not good for her I love her to death but he is not good for her.