My boyfriend and I were together 2 years ago in another state, and were together a year and a half before splitting because I was moving interstate and I was sick of the way his best friend treated me and my boyfriend not doing anything about it. My boyfriend has now moved to the same state as me and we have been together about 2 months now. His sister and his best friend's ex-girlfriend are now living in the same state also, but I don't get along at all with his best friend's ex-girlfriend. My boyfriend has been going to parties and gatherings at this girl's place a lot and it bothers me because he doesn't invite me to any of his social gatherings until I bring it up. I won't go because when my boyfriend drinks he becomes silly. Last time he was drinking he kicked me in the eye and now it is permanently damaged. I won't go to social gatherings with his best friend's ex-girlfriend despite my boyfriend saying her and her friends have changed. My boyfriend and I constantly argue now because of this and I don't know what to do.