I'm sorry you have had such a hard childhood. You were defenseless as a child and years of this abuse has taken it's toll.

Right now your boyfriend has disappointed you. It's sounds as if he does care for you but want's to date other people, which is natural at his age. His behavior is not a reflection on you. Now you need to mourn the loss of this relationship. You will get through this-you've tackled much worse.

Eventually, you will meet someone else. It just takes time. Hugs!