My boyfriend and I broke up

Hi girls, my boyfriend (of a year and a half) and I broke up about a month ago and he hasnt even called or txted. I thought he would fight for my love. The reason I broke up with him was because he was not supporting me in my studies. At first i was ok w the breakup but now its starting to hit me. We were eachothers first, i thought he would care more. Any advice? 😥