Could you explain why she cried? 
by security i'd say shes comfortable with you around and willing
to talk to you bout anything.. when you get comfortable with
someone, you might gradually fall for him/her regardless of his/her
looks or whatever.
i use the word 'might' because it's not necessary for one to get
comfortable with another and then fall for him/her. but in your
case it is and, she likes you
(not sure bout the $$$ part unless you've been showin her the
money!
but i guess not for this case....?)
i think it lies with your character.... i guess you must be the
type that is er, good to friends, very steady, righteous (pretty
impt), easy-goin....? (i dont know because i dont know you
so i only assume nia in your words from your past
threads
) but i feel that you're quite an easy person to
talk to, well at least in here 