somehow i think ur words r not nicely crafted. u compare her
ex....like that wan dan liao! 
my gf always say...dont say u wan to change, show me, prove to
me.
summore u told her u can express only in text form...like that the
impression is: i cannot express myself even when i m with u face to
face, only in text form then i can, forever.
she lacks a sense of security i see from ur words....
assumptions made by me only