If you really want to go ahead and marry someone of the opposite sex, please do, go right ahead. I'm straight. It's worked GREAT for me. I love my husband and am grateful every day that I got to marry my soulmate.
But if you ever say "I love my gay friends but I think they should have no right to marry someone of their own choosing because the gender doesn't fit with my definition",
What kind of love is that? What kind of friendship is that?
I don't hate you. I just think you're a sefish, self-centered, self-righteous, bigoted hypocrite, and I hope you get written off a lot of invitation lists.