hehe. i think as long as u know each other, its ok to call la.
cos for sms, i think u might be happily sms-ing each other, but
turns out when meet face to face still nothing to talk about one,
and i believe talking on the phone does help to break the ice
bah..
u can sms her also la. as long as dun lose contact, let her know of
ur existence can le.. 
