Agitated Owl said:
I have never understood this. Homophobia is the irrational fear and/or hatred of homosexuals. Nothing in the guy's email suggested that he was a homophobe. In fact, he was very polite about it. At most, the email indicates that he was uncomfortable with the situation. But there are any number of reasons that would account for his discomfort, none of which involve a fear or hatred of homosexuals.
What about his response makes him a homophobe?
Well, he did say "I have never been confronted with a situation like this before" leading us to believe that he's trying to avoid confrontation with homosexuals.
You don't have to "hate" the gay community in order to be a homophobe. It's the same concept with racism. You don't have to hate black people in order to be called a racist.
It's a small discomfort around something you're unfamiliar with, so it's technically a phobia of something he doesn't understand. It's not exactly appropriate behavior, but the person in question handled it very rationally, so I don't think it's right to berate him for that.
Or at least that's how I understand it. I do understand my definition applies to a lot more people than your's does though.