FEMALES I NEED HELP!!!! lol?

How do i show my Best friend (Potential GF) that i miss her alot. We havent talked on da phone like we use to a week ago, She doesnt txt me as much like last week, I txt her but she doesnt reply until 4 hours later. She is very busy with her midterm and school junk. Im running out of ideas. On myspace, her status updates always says "Missing him so much, pienso en ti todo el dia," and i kno she talks about me and i write the same thing but im running out of ideas. Help me out it's a sucky feeling not talking to her, I love her so much, she's the reason why i keep my head up everyday, she has changed my life drastically