i couldn't wait for him to decide

next thing i know he is totally flirting with this girl from other school. he was laughing really loud at her stupid jokes and doing his whole thing that he does around girls. we were chatting, i said something to him about it, and he deny it. so i said, " okay, if you don't have feelings for me or whatever, it's over between us " i thought he would tell me i was being silly but instead he said, " you lah decide "
all weekend i was so mad. i didn't call him and when he called me, i didn't answer or message. then i chatted with him. he was all sweet to me and asking why i didn't message him. i just couldn't take it anymore, so i broke up with him. i'm not going to sit around and wait for him to make up his mind. i just don't understand why he is the one freaking out and start calling me names. he didn't even try to get back with me and say he was sorry. he acts like i am the one who did something mean.