If I might chime in....

A relationship without trust is dead in the water. It sounds like your bf is making progress to overcome his issues but he still has a long way to go. He seems to be overreacting harshly to your perceived infidelity. Either he is a very insecure, jealous and controlling person, or he has some other reason (s) to not trust you. Either way, you need couples counseling to get to the root of this. It could be a matter of poor communication. You need to show him that you acknowledge his feelings and won't be dismissive or angry when he tries to bring it up. A month is really not that long. I'd be patient with him. Try to be measured, calm and understanding when discussing the subject and give him the time he needs to get over this. Calmly let him know that you will not accept him calling you names and continually treating you like he has over this. If he keeps attempting to punish you and make you feel guilty, then his behavior is unacceptable and must either end or you must exit the relationship.