S
If a father withheld his blessing, I suppose the next step would be to respectfully ask him why he felt that way. Maybe the dad knows his daughter far better than the guy, and may either know she is not ready or may see something in the guy that sends up some sort of red flag. If the father/daughter relationship is close/healthy, the guy might want to give careful consideration to what the father said. If the daughter really isn't ready, the guy should respect that. If the dad is troubled about the guy for some reason, a respectful conversation might clear up some misunderstandings. While I feel the lady should most definitely have a say, her dad's wishes are certainly something to ponder. Marriage is difficult enough without starting out with tension among family members.
*pouncetacklehugs*
Missed you so much, Red! Good to see you back. ^_^