i broke up with my bf a month ago, but after that, he became really flirty, weird, rude adn etc. i asked him, he just yelled at me and said it was none of my business and the time we were together he was miserable. how come?
The breaking-up has been too much for him. The hurts turn to anger and denial. His attitude since then is a way to push you away to avoid to be hurt again. It's wise to leave him along for a while.