It's never okay for you to be someones second choice. It's never okay for you to be someones back up plan. When you allow yourself to be these things your settling. Your not going for what you deserve. You're holding onto something that needs to be let go of. I know it's hard because you feel like maybe eventually he'll pick you. But when you truly think about it you know it'll never work. It's never okay to be used. You need to take a stand and he doesn't know what he's losing that's his own fault and someone will realize how truly amazing you are. It's okay to be sad, and hurt. But in the end it'll all be worth it.