That's one dense pedophile
pedophile aside(roxy is short, yes, but not exactly a child), a lot of guys are dense IRL. often times, we don't realize that a girl is making an advance on us until a few years later.
and in the event they just shoot it straight, we wonder if this is a prank or not.
this is because most men was taught from a young age to take charge of things. it's just in our culture. we're taught by our parents. the media we consume advocated it. so when a girl make a move, that's a major curveball for us. we short-circuited.