I guess it's all in how you define love. When they stand before God one day, will it matter that it felt real nice to look the other way?
No more than any sin that each of us commits will. If one is forgiven, it matters not the nature of the sin. I'm just taking a wild guess here, but I bet you sin every single day like the rest of us. Do you believe God has a degree chart?
Further, what would you do if this happened in your family? I know I would be crushed, hurt deeply, and terribly disappointed, but none of those things would make me stop loving my child. I would pray every day for him/her to walk away from the lifestyle and pray for his/her repentance, but all the while loving that son or daughter.
Admittedly, I'm atheist, but...
Suggesting the Cheneys will go to hell for not turning away their daughter does not jibe with ANYTHING I ever learned of Christian theology.