You cannot put his name on the birth certificate without him being with you as you are unmarried - from Gov.uk
Unmarried parents
The details of both parents can be included on the birth certificate if they do one of the following:
sign the birth register together
one parent completes a statutory declaration of parentage form and the other takes the signed form to register the birth
one parent goes to register the birth with a document from the court (for example, a court order) giving the father parental responsibility
The mother can choose to register the birth on her own if she isn’t married to the child’s father. The father’s details won’t be included on the birth certificate.
It might be possible to add the father’s details at a later date by completing an application for the re-registration of a child’s birth.
He sounds like an arsehole, why would you want to try to involve this man in his child's life? Look after yourself, surround yourself with people who love and support you. Give the baby your surname. Yes, I agree that babies should have loving parents, but this man sounds like a dick.