what to do

I am in this relationship/ it used to be amazing. satified everything. and now this guy called me a "fuck up" and belittled me the entire weekend. i do not deserve that. i have savings accounts. i am still in school. i work at a awesome job. so dont make me feel like shit. ever. 4 months ago. i wanted to marry this boy, i think he actually wanted to marry me.. now, i don't even think he really wants me around despite saying he does. i am frustrated. its just awful