I definitely thing that Rock's love life was rather by-the-book -high school or college sweetheart, one or two relationships afterwards, both of which ended before marriage could really be called into question.

Yeah, he seems to have been so alienated and emotionally disconnected from everything else in his past life -- family, schooling, job -- that I tend to imagine his romantic life would be more of the same; things would just sort of fizzle out before they ever got really serious. No huge blowups or infidelities or anything, just more of a vague mutual ennui eventually leading to a "you know, this isn't really working, let's just be friends" deal; ending not with a bang nor a whimper, but more of a resigned shrug.

I think Rock would throw her for enough of a loop that I can't quite see her be the aggressor.

Or at the very least, definitely not in her usual style. I can maybe see her going after him if he gives some initial sign that he's interested, and maybe there's the right mix of circumstances -- drunk off their asses, buzzed on adrenaline and/or endorphins from a particularly close call or injury, whatever, something to lower her inhibitions enough to get past the hurdle of the vulnerability of making a move on someone she actually gives a damn about, and doesn't want to lose as a friend. But just in a more everyday sort of situation and dead-sober, I can't see it. She's already softened up so much around him, even compared to how she acts around the handful of other people she likes and treats as friends, even if she might never use the word herself. And I'd think that closeness and exposure of a vulnerable softer side has got to be scary and unprecedented enough for her that she would be intensely wary of taking things any further and fucking it all up beyond repair.

Actually, Revy's freak-out when/if Rock ever said 'I love you' would be pretty damn epic.

Ooooh yeah, especially since we've seen the one thing he won't tolerate is her being a coward about her feelings...