I miss my boyfriend so much but i HAVE TO LEAVE HIM.?

My boyfriend and me are on a break, or broken up or i dont know. And i know he knows ill be waiting for him, hes taking advatage of me, abusing the fact that i love him so much. I nneed to leave him, at least take a few weeks so show him he cant keep treating me like this. The problem is its only been a few days but i miss him so much, i have that homesick feeling and i feel lost without him. Ive never truely missed ANYONE like this except my parents when i was young. Ive never felt this way before. I dont know what to do, i sit in my room here crying.