So about a month and a half ago I met a guy through a mutual friend while I was out of town, and we ended up hooking up. When I got back we kept in touch, and he mentioned that it was mor than just sex and that he likes me. Since then we've seen each other about three times, and each time seems like we get more and more emotionally involved. He acts like he really lieks me and says sweet things. About two weeks ago he went on boys trip. This weekend I saw him again and we had a great night together, very passionate and deep cuddling and talks and I feel like we made a strong connection. But today I looked on his profile on Facebook and found a picture of him and a girl the weekend he went on the "boys trip" one picture was of him and the girl, and the other picture was one she took of him. We arnt in a relationship or anything, but should I be worried? Could it just be a friend, or should I be concerned? Were not in the stage of being able to ask him just yet because were so new. Am I being paranoid? Should I give him a chance? Or get out now?

If you are having sex with him and if you are having unprotected sex you should be able to ask if he is in a relationship with someone else.
Stop the sex and let the relationship develop or die.