Most Helpful Guy
First off, as I have said a thousand times on this board, straight men are not the "friends" you think they are. Guys stay "friendly" with women because we hope to one day have sex with them. There is no other reason a straight guy is friends with a woman... in the true definition of the word friend. They can be friendly.
if you want to be with other guys more then you want to be with the one your with, then you should just break up. Otherwise your going to cheat on him and that is just a disgusting thing to do. and once a cheater always a cheater
Most Helpful Girl
If you don't like him in that way then break up with him, don't drag him alone. Just tell him How you feel and hopefully he doesn't take it too hard.