I agree with Donna-- Does she have a boyfriend? That could be the problem. Also, is she having a hard time with life? are her parents divorced? From the way you're describing it, it sounds like she does still care about you, but hardly ever feels up to writing. When you do talk to her, does she sound and act like she doesn't want to talk anymore, or does she still talk like the old Kat?

Sorry about my little questions, but my mom's a therapist and I can't help it

(((((((((((((((((((HUGS))))))))))))))))))))),
Devon