Wow Cherry, sorry to hear about all the anguish you're going through.

Suki and Leed are right. This guy is using you. Sorry to say, but he just isn't willing to commit to you the way you have committed to him. He knows how you feel about him and he's taking full advantage of that. He takes what he wants and is not concerned with what he gives back to you. The fact that he has been secretive and has another girlfriend really says it all.

Take care of yourself. Don't put yourself through more pain. It's time to find yourself someone who is actually worthy of you. I know it's not easy to walk away from someone you have such a deep attachment to. Just keep in mind that this relationship is completely unhealthy for you personally and is only going to lead to more heartache and stress. You sound like an intelligent and loving girl so I am sure you will have no problem finding someone who will appreciate those fine qualities about you.