What should i do? i really need your help?

i been with my boyfriend for a year and eight months. we had a lot of problems in the beginning of our relationship and i think its starting to really hit me. i been trying to ignore my feelings and ignore him when he was doing something stupid but today, i cracked. i didn't want to talk to him or even be by him. at the end of the day when everyone was going home on the busses, he was being so mean to me. he said he wanted to walk home so i let him go. when i was walking home from the bus stop, i imagined him walking to me. then he did. i was surprised but not really happy. i guess we worked things out then. i told him I'm tired of his jealousy and he needs to change his attitude if he wants to be with me. i cant even talk to any other guy without him getting mad. now i find out he was deleting some guy friends off of my myspace. i don't know how to get through to him that I'm 100% serious. i told him I'm going to take a break this weekend to think about what to do and that he should too. it doesn't seem to be working. i don't know what to do anymore. sorry its so long but i really need help