Jealousy

Hello. I have a friendship I'm trying to deal with. He is my bestfriend, but I am not his. I'm really struggling with jealousy and have no idea what to do. I can't seem to deal with it and feel it would be easier to walk away. He really doesn't want me to, but my jealousy hurts him.

We are states away from each other and play video games together. We met one a server in which I became friends with him and his other friends. Well he and I have some rough fights at first and his friends do not want to be around me. It causes strain because he has to split his time between me and his group of friends. I'm very introverted and have tried hanging out with other people I game with while he is playing with them, but it's just not the same. I got to know him on a deep level and I'm emotionally attached. I would like to add that we are both happily married.

I feel bad because I feel I need him in my life, but he does not need me.

Thoughts?