I hope the mods allow this
I had a friend, who was in yeshiva. We used to hang out alot, go to peoples house for shabbos and I used to say many of the things people here said (this was before the issue of marriage came up).
He seemed very down and very depressed, One day I sort of guessed what the situtation was , and I was floored.
We are not that close anymore, he did come to my wedding and I did ask him to come alone and look like and act like everyone else (which he complied) but I did learn a lesson. Do I understand everything he went through, no. Would I choose this lifestyle for myself no.
However I also learned that such people are not the people you see on TV or might see on the Subway