Unfortunately, it seems that the object of Mr Yakuza's affections (he's 'Kazuma' to his friends, but Mr Yakuza to me) was only coming on so strong to make him down a spiked drink so his money could easily be stolen. Good thing really, she comes across as so desperate, nobody this side of the character described in the Offspring's Self Esteem would stick around long enough to get this far.
But at this juncture in the conversation, you really do have the option to use this sorry excuse for a chat-up line. I can only hope he too was only saying it because he wanted to steal her money... wait, what am I saying? This is all kinds of wrong whichever angle you look at it from.