Wow, that man is really, really annoying.
I suppose that's possibly the point—that he's an utter twit and a prat, and she's pretty chill and open-minded, which sort of makes an interesting dynamic. I'll grant that.
But to the extent that that might make a good story, it's kind of undermined by the ecchi undertones (as if we're supposed to be rooting for "romantic" developments, instead of the desperately needed character development).