My two roommates and I are out at a bar with RM1's GF and her friends. We bring RM1's GF and friends back to our place afterwards. After GF's friends leave RM1's GF accuses RM2 of acting "creepy" toward one of her friends.

From my vantage point, all I saw was simple flirting between the two. In short, I stuck up for RM2 and called out RM1's GF and said if she thought he was creepy she would have said something or left. RM1's GF then gets mad, cries and storms out.

RM1 comes back after running after his GF and shoves RM2. I break it up. Before this we've all gotten along well. He's been gone all day and am now wondering how to resolve this from a RP view. Thoughts?