My wife was engaged to a gay guy before I knew her (it just suited both of them at the time). That was before the word gay was in common usage. When we got together I was adopted by her gay friends and in consequence met a whole group of people who I might never have found otherwise. I'm not going to say how wonderful they were, they were just people - some were funny, some were hard going, some were .....whatever straight people are they were the same.
This ludicrous preoccupation with people's sexuality seems to me to be some kind of horrible, medieval prurience which has no place in the minds or attitudes of rational people. If you need to get upset about other people's sexual behaviour start hassling your political representative about the ridiculously low rate of convictions for rape, that is something to be concerned about.