Frustration

It's just that I won't put myself in a situation where romantic and sexual feelings come up yet I can't act of them.

Ah yes. Very wise. Frustration to some degree is part of our lot in life. And there's no point in exacerbating it. I think that this falls under the "to thine own self be true" part. As you get older, hopefully you become aware of how your feelings play out, and you can take better care of your emotional health.

In a non-pedo context. While I am aware of the difference between sex and love intellectually, that's not what my chemistry is telling me. When I become physically intimate, I become emotionally intimate. And as long as I know that "casual sex" is an oxymoron for me, I can avoid frustrating myself in the long run, by not going there.

( Insert Yoda-like sage advice )

Dante