I've been dating this guy for about a month and he had a girlfriend before me it was an on and off relationship. And I have his exs number who's in a grade above us.but I cant txt her any more because I don't want to go behind his back and txt her.so my question is how do I bring up the question has he kissed his ex on the lips before because his friend ask me ifi would kiss him and my friend yelled yes I would I'm not experienced at all at kissing and I want to know if he is for I don't make a fool out of myself