What should i do ? i need your suggestions~?

I'm getting along very bad recently with my bf, we just don't have too much to talk to each other, we always keep silent. He asked me for , but i refused very euphemisticly, maybe this is a reason. Then i feel very angry about our relationship for we don't open heart to each other. If i speak, he just listen, he seldom tell his things to me...And i couldn't help saying some words which may hurt his self-esteem, then he went away leaving me alone outside at night! I have cried for many times, i have considered to break up with him, but i just don't want to do that for i like him, so what i should do?thanks if you may share with me your ideas!