Is my bf breaking up or is this something else?

I think he needs to be a little more sensitive about seeing things your side. Men always think it's the women that have the problem or the attitude. If you said sorry and admitted you were wrong then he should let things go, stop holding onto the anger and talk to you again. he sounds like someone that can't get over things since he said "minus the attitude". that was crappy of him to say. if he does care, then he will try again. call him up-like he wants and express to him that you do not have an attitude and tell him why you are angry/ hurt and try to get him to open his mind to your feelings.