Well said. I think that being 'safe' does take away sexual tension, because there's nothing to get tense about.

And, as a safe guy, I find myself in amazing paradoxical situations - women who alternate between behaving as if we were already in a relationship and telling me that they're "Not interested in me that way."

Ironically enough, the person I get the most "I'm attracted to you" type response from is the one with the looks of a model that wears cleavage-enhancing clothes all the time. Perhaps because I'm capable of a conversation in her presence without having to pretend that I'm not interested.