Should i break up with him?

first of all you need to stop chasing him. you're making too much effort. let him call you, let him text you.you are making him seem too important. even if he is important to you... you can't show him that. since he obviously isn't acting like he cares. just stop calling/texting him. if he calls you and asks "what's up" that might be a sign that shows he cares, and maybe he will finally listen to you. but if he doesnt call you or anything then why are you even wasting your time? find someone else closer to you, i mean he's going out partying without you and all that... how can you even trust a guy like that?