Does she know I like her?

There's this girl and I really like her I try to talk to her whenever I can but I'm afraid that she isn't catching any of my hints. I do all of the little things that she says like pay attention to the things she likes then go out and buy them. She was my Valentine last year and I got her roses and a bear.....she still has the teddy bear and she even named it after me. This year since we aren't at the same college I sent her a valentines card on this past Valentines Day she was really excited about the card. I just want to make sure that she knows I like her in that way, so when I go to ask her out she can't say she didn't know I liked her or whatever I personally think I cannot be more obvious in my actions. She doesn't have a boyfriend either.

Why are you dropping stupid little hints? Thats what girls do. Be a man and just ask her out. The worst thing that will happen is she will say no. Nobody is going to die