I recently been talking to a guy I met, and we've hung out twice. (we've been talking for about a week straight now) We've done oral and I stayed the night at his place once. Today I went on Facebook to just to look around, and found out he has a girlfriend. I wasn't romantically interested in him, but now I feel fucking awful. Do I message the girl or just stop talking to him all together or what? I feel as if it's not my place, yet at the same time I feel as id I just stop talking to him, he might continue to cheat on this poor girl. They've been together for 4 years now. That's just downright disgusting of me to mess that up. I feel like shit. What do I do?