get your loves and likes figured out first
you can't love a person until you're fully in a relationship
how can you love a person that you don't even know?
and falling in love is a total different concept as well...
falling in love with a girl is when the both of you are in a boyfriendgirlfriend romantic relationship.
if you like her a lot and that your friend doesn't talk to his girlfriend much
i can suggest you be the friend that talks to her, the one that's there for her when she's down, the one that's able to help her through the tough situations of her life.
hangout with her, do fun stuff together, and you know what? soon the both of you will like each other.. how i know this? it happened to my best friend. :)
this of course is just MY opinion
hope this helps
-jjdubbie:)