Is selena gomez thinking justin bieber is cheating on her with his ex-gf Jamie V? well,HE IS thats right thats the deal because when selena was sick he was going to take care of her but didnt he said he was helping his mom with something but really he went to jv's house to making out."And how do u know" you might ask well selena said"I saw kiss marks on his neck and he smelled like perfume"well jv and sg are not friends they cant even stand to be in the same room togather.They say jv is trying to win jbs heart back and selena will not stand in the way of that.