Should I let it slip away again?

Its a very long story but i really need help with making my decision. Thanks to all who help. Ok so i am currently a junior in high school. My freshman year i started goin out with my ex. we were together for like about two weeks and then gt in a fight n it ended. well i met this guy which also went to my school. he looks like chis brown :) but neways i started to fall for him but i never thought he would feel the same way towards me. it turns out that we had a fashion show at school and he wanted me to go (he paid for my ticket). At the end of the show he confessed to me that he liked me. I was ecstatic. he told me so many beautiful things that no normal guy would ever say to a girl. Obviously i told him i felt the same way. We started getting closer but then one day my ex calls me apologizing so now i was stuck. i spoke to the look alike chris brown about it n he told me that if i really liked my ex he would understand. I ddnt know what to do. So later i made the stupidest decision n took my ex back. the chris brown dude didnt talk to me nemore. In the end we started fighting again and having problems and i always found myself regretting having chosen him. me n my ex eventually broke up at the end of my sophomre year. About to weeks ago i tried to reach the chris brown guy to apologize and i told my friend to give him my number but he never called until this past saturday we spoke for about an hour and cleared the air. Ive been thinkin about him ever since and idk if i should try talkin to him again or if he would want to? I dont wanna get my hopes up. I want to get a second chance and be able to do what was suppose to happen the 1st tme. What do you people suggest?