I actually paid attention in heal class, I know how people get STDs.
I've been with him for about 18 months, and I know you may not believe me but... he's just not the type at all, I live with him, it's not even something I consider. Maybe you're not a trusting person.
Female condoms seem disturbing. I'm not that worried anyway.
Im a trusting person.. BUT!!! Like I said even if he did cheat on you, its less likely he would tell you.. shit happens.. get drunk, or something... but anyway...How old are you anyway Kistune?