#homophobia

What is your definition of homophobia?

I do not mind it if a guy is feminine but I think I get how gay guys feel about lesbians going at it in front of them and maybe even straight sex, it really is offputting to me to see gay stuff.

If I see two men really going at it, it makes me involuntarily feel like if I see something yucky or ate really sour, bitter food unless I work to hide the look on my face. I wondered if this means I am a homophobe or just too hetero to enjoy it.