Yesterday, a long-ago roommate's name popped up as a recommended connection on a social network, and I invited him to connect. He accepted but wrote back to warn me that he's now gay-married and that maybe I will want to delete him for political/personal reasons. So here's how I explained my stance:
I think I saw something about your same-sex marriage on Facebook, but then I must have been wiped out in a friend cleanse you did, because I don't think we're FB friends anymore. (Feel free to add me again, sometime.)
I'm against the gay movement on theological grounds and am opposed to gay activism in any form, but I'm not necessarily against individuals who have decided to privately live in a same-sex partnership--I don't presume to judge an individual's situation. My personal policy is to socialize with gays and gay couples as occasion naturally arises, but I don't allow gay couples around my minor-aged kids, because I want to protect them against examples of alternative lifestyles. (I realize they will get the examples from elsewhere, but not with my implied endorsement.)
So my wife and I go out to dinner with my wife's gay cousin and his partner and even recently flew down to L.A. to see his one-man play about leaving Mormonism and embracing gayness, but when he comes over to our house he doesn't bring his partner, at least not as long as we have minor-aged children living at home. (If one of my own boys decided he was going to live gay, these same standards would apply to him as well.)
I'm afraid I feel the same way about church. I would not welcome a known gay couple to attend church together because of the confusion it causes for children, whose sexual orientations can be quite fluid through young adulthood, easily affected by many different kinds of outside influences.
Anyway, good luck with your path, which I'm sure must yield you much happiness or you wouldn't go out on such a limb as a believing Mormon. I hope that homosexual happiness lasts as long as possible for you and extends in some form into the afterlife, although I'm quite dubious about that last part.