hate players

My BF that I had in March, cheated on me or played me or both idk with his ex that he dated for 8 months and only 3 days for me!! I don't know what I did but that night (school night) he texted his ex saying I still love you I don't love her(me) and it made me pissed off cuz his ex screenshotted the conversation and my sister in the morning got the snapshots from his ex and I came in all cheerful and excited to see him on a Tuesday and then my sister said don't cry and then I start crying and she showed me them and then I start bawling cuz he treated me right, texting me sweet things, we hungout and he was being a gentleman but no guess I wasn't good enough exactly what he said....then 2 months later he begged me back I said hell no you creep then he got creepy and acted like a stalker!!!