Your friend is LDS? Are you were the LDS Church is pretty strong? No wonder being or not being gay is such a big pressure for you!!!
None of us have all the answers, none of us really know who we are, and on top of that, we change as we grow!!!
I have a friend that in High school everybody thought he was gay and would ask him all the time. Eventually he turned into one (I think mostly through peer pressure) then, about 8 years latter he had it, and became straight. Now he is married with children and happy. Good heavens! Thank goodness nothing is written in stone and all uf us have the right to learn as we go....