I think that if it helps you to have a time frame - then its a good idea. Some times its hard to let go and make that decision. The time with Mark, I am sure, was not all bad. But yes - he hurt you and treats you in a way that hurts and confuses.

There may be tons of other guys. There may be some one wonderful waiting for you. And you may meet that someone. Just focus on yourself Belle. And make sure not to give him power over your changing moods and feelings. No matter what he says or does - you are OK.