Ana if he wants to flirt with anybody then its completely his choice and indeed not a crime undoubtdly. What it seems to me that this guy is trying to prove his worth by involving himself with other girls when he says he loves u.Thats very childish of him because it doesnt make him great. Now he thinks he has two girls watching him and this again causes him false pride and makes him feel at the top of the world so he says so many weired things to u. Dont take his comments seriously. His commments are completely illogical, makes no sense and shows his insecurity and foolishness.Hurting urself because of his behaviour wont allow u to move on. I would advice u to move on and try to look for some more eligible guys.