My Ex cheated on me with a girl who was engaged to a friend of mine. they broke up and we broke up, and then me and him got together. we broke up. apparently he's been sleeping with his ex all this time. they still love eachother. i'm still invoved with him. but she loves my first ex too. we've become friends lately. I've fallen in love with her. shes been cheating on her fiance with me, but i know she could never feel the same way for me.