27-yr-old John Paul Campbell had attacked his new wife's best friend, Samantha Dewar, after she tried to break-up a fight between him and another bridesmaid at the wedding reception's car park
The groom during court proceedings had admitted that he was high on booze and cocaine.
He was jailed for 12 months by judge Roger Dutton at Chester Crown Court after an arrest was made by the police a day after the wedding.
Dewar a mother of two who has known bride since school days told reporters she hadn't spoken to her best friend since the incident.
"We've been best friends since school and I helped her get ready for the wedding. I can't believe what's happened, I've lost my best friend.
"It's been a nightmare. Everyone was having a nice time at the reception and it was at the end outside in the car park when it happened.
"He punched me in the face out of nowhere and knocked me to the floor. It was all so quick and all I can remember is waking up on the floor in agony.
"I couldn't open my eye. The swelling was awful and I couldn't feel my face. I still can't feel down the side of my face and just hope it will get better.
"I'm more nervous of people now and it's affected my confidence. I've been scared to go out and be alone in the house. It was such a forceful punch and it's scary to think what could have happened", she said.