My relationship is unhealthy but I love him?

Bare in mind this is going to be long but I really need a place to vent my relationship problems. Me and my boyfriend have been together for 11months come 26th november. Our terms started out very delicately as he found pictures on my phone that I had sent to a previous lad just before I agreed the relationship with him. The photos were rude and disgusting however I had spent a whole year taking loads of hurtful crap until I got to breaking point. I was manipulated and forced into sending these pictures, I was harassed constantly, he made me vulnerable, i

Er.... you were saying?