I hate sharing a bed

I am a horrible sleeping partner. My husband and I cannot sleep comfortably together in our king size bed and it is all my fault. I confine him to the edge of the bed and then still demand he move over. I feel shitty about it and when he goes to sleep in another room it really depresses me, but I hate sharing a bed and sleep so much better alone. I have trouble sleeping to begin with and I'm also claustrophobic, but sleeping separately feels depresing and like it would destroy our intimacy. How do I stop being like this?