It can be really hard to be gay, and not always for the reasons that you might suspect. Sure, you have to deal with your mother's fear that you won't be with her in Heaven some day, and your dad's fear that you'll be the victim of discrimination or a hate crime. However, sometimes it's the day to day difficulties that wear on you the most.
It's all of the flirtation and suggestive comments aimed your way by unsuspecting strangers. It just goes completely against the grain for me. It grates on me, and is intensely uncomfortable. To help my family understand, I liken it to a gay person hitting on them, and the intense reaction they would feel. Suddenly they seem to get it.
I wonder what would happen if I told these unknowing strangers the truth---that I can't be interested in them because I'm gay. I would never be so naive to do so, but I hate having to bury who I am all the time. It's like a strangling of the soul.