Does divided preferences or experimentation in someone's past give someone a license to cheat or not commit?

Well look, if you are not at a point where you are going to give it your best try then don't mess with the guys mind...It just is not fair to him. It is entirely fair to expect more from you...and if you are not at the same place, then fine...jump in with both feet with being a full time ho muff muncher, but don't try to have it both ways...The only ONLY exception would be if you were to date a guy who would be ok with a 3 way relationship...otherwise....get a grip or get a "cat."