I met my best friend in middle school.We've had our differences from time to time bc she can get an attitude, but were mostly very close. My boyfriend came into the picture 3 1/2 years ago and their relationship has gone from hating each other to loving each other to hating each other again. Recently, my boyfriend's best friend started going out with my best friend. In the beginning it was great. We would all hang out together and it was great.
Things turned ugly quick though. My boyfriend...