She made me a blanket for my Birthday?

I think it's still a good sign. Sometimes people get so busy in their lives and don't have a lot of time to do things with others especially when school starts. I think that if she made a you a blanket then she must think highly of you and it doesn't mean she doesn't like you anymore. It just means she is busy in her life at this moment. Why don't you call or text her and ask her how she is doing?