He's an ass that he told you and then forced you to meet her since he knew how you felt about him. Seems like he wanted to rub it in your face.
I'm sorry and feel for you, relationships are never easy. Hope you'll find someone worthy of you someday and that you both feel the same about each other. I know it sucks, but you can't force anyone to love you and you can't force yourself to stop loving him either.