A: Nothing would ever make me consider cheating on any girlfriend I would have. The key is to find someone who wouldn't cheat on you and stay loyal. There are too many dishonest people in this world that cannot hold a relationship truthfully for the life of them.
A: Form my opinion (guys), I would say don't take it any further until he is single, however do not try to "make" it that way. Hehe Put yourself in his girlfriends shoes and think of what your actions could cause, that poor girl would be heartbroken. What I would do is just leave things as it is until... more