there's no such reason. love.

lady :  why do u like me? why do u love me?

man :  i can't tell the reason. but i really like u. 

lady :  u can't even tell me the reason.how can u say u like me? how can u say u love me?

man :  i really don't know the reason.

lady :  i want u to tell me the reason. my friend's boyfriend can tell her why he loves her, but not u!
man :  OK...OK !!!  Erm...because u are beautiful, because your voice is sweet, because u are caring, because u are loving, because u are thoughtful, because of your smile because of your every movements...

unfortunately, a few days later, the lady met with an accident and became comma. the guy then placed a letter by her side, and here is the content :

dearest,
because of your sweet voice that i love u...now can u talk? no! therefore i cannot love u.
because of your care and concern then i like u... now that u cannot show them, therefore i cannot love u.
because of your smile, because of your every movements that i love u...
now can u smile? now can u move? no, therefore i cannot love u...
if love needs a reason, like now, there is no reason for me to love u anymore. do loves need a reason?
no! therefore, i still love u... and love doesn't need a reason...