good for you.
but if you are a good sibling,
you should remind your sis that
her angmoh bf is 'gentlemanly and sensitive'
to every gal he fancies for the moment.
those niceties you mentioned above are trademark
angmoh mating rituals or foreplay if you will.
angmoh men also naturally do better in these areas
1) 'oh-loh'
2) 'xian-tao'
3) two-timing, three-timing 4 5 6...
4) boozing
5) pub-crawling, clubbing
good news if your sis's crush on angmoh man is a passing
fancy.
bad news if they actually get married because he will
definitely
deport your sis back with him to angmoh land,
because he so desperately needs to feel at home.
and what about your sis?
well, he doesn't care how your sis feels,
if she hasn't figured that out yet.
your family will never see her again.
and she'd be stuck in a land surrounded by angmoh racists