I agree with jadzea- 5 years is a long time, but don't lose anymore time on a relationship that hurts so much. And who knows, breaking up with him may be the best thing for the both of you- you get to move on and heal, finding a better relationship, and he may finally see that his problems are his own doing, and not those around him.

A break may even bring the both of you closer Be strong, and be the love you want to see in the world. Blessings to you