Why would a man delete you as a friend on facebook if he has feelings for you?

I think he has a woman hea commited to maybe. Even though hes with her hes attraxted to you. Thats normal you know. But if he is single, why not just ask him out yourself. You have to take the uo nitative now a days with some men. Hes probaly nervous as he may not really jnow you like him.