Well, dude, if you guys are going to make it in the long run,
she's going to have to get used to you. Can you imagine saying that
you've been together for 3650 days and copping it because you
didn't account for leap years? 
Different people have different ways of expressing themselves.
Maybe get a copy of Gary Chapman's "The Five Love Languages" and
both of you read
it. It's fairly easy to understand, and if you're having a hard
time figuring each other out, it does help make things simpler.