How does this means ? Girls oni plz?

I am in love with this girl . when i send her sms like "always smile to keep your worry away" she will reply with a "wat are u talking about?" .when i praise her by sending a sms " I tink ur smile today in cl is beautiful" she will reply with a -.-'' .and i send her greetings like gd nite , or take care of ur health during the holidays , she will reply with a thank you? so does she treat me as a friend or more than that ? i really love this girl veri much !