(Look...I'm sorry Plz no kill da child.)

You've been dating (Boyfriend/Girlfriend) for 3 months now. You've noticed they've been avoiding you. Its strange.

One day you walk past (Boyfriend/Girlfriend)'s room. There was a loud thud. You quickly get worried and kick the door down. You see (Best friend's Boyfriend) and (Boyfriend) making out with other girls.

What do you do?