breaks up?:/

When you were in 5 month relationship n he was your first and then ending things in bad terms because he couldn't be with someone who didn't trust him when he cheated n I left him n now he try's to get me jealous n blocked me on everything :) he can't even look at me n he looks so mean so rude so bad but after that breakup something happened with my first love and me we have been talking n kissed a couple  of times idk if he has feeling for me but I know there something from me to him ...