CONFUSED

Dear Prudence, i am a 15 yr old girl who is very confused.

I broke up with my boyfriend of a year because well he was just very immature and i had no intrest in him anymore. But before i broke up with him i cheated on him with my best friend dalton and we well lets just say we did things we shouldve. This went on for about 4 months until i just felt that dalton was better for me,BUT there was a problem my ex went and talk to dalton w/o knowing that i cheated and he still doesnt. First i flipped out and then cussed him out, then i told him i was truely in love with dalton and he told me he never wanted to speak to me again and called me a bi***. My ex then told him that he would beat the crap out of anyone who tried 2 date me. Dalton not being the brightest didnt realize that my ex is not a fighter at all. So now i have no boyfriend and my ex is still after 3 months in love with me and tells everyone possible. Im still in love with dalton i kind of still love my ex.....but now theres this other guy and i dont know!! what should i do?