<human>: Can you summarize the given text in a few sentences?

I have been friends with this girl for the past 9 years. We've always had great chemistry and would consider each other one of our closest friends. About 3 weeks ago, she told me that she liked me and I told her that I liked her, too. We've been hanging out more, but with our work schedules, that only comes out to 1-2 hang outs a week. For the first few hang outs, things would seem great, she would kiss me, and I'd stay over at her place her. The last hang out we had was a complete 180 from that. She wasn't affectionate, didn't ask me to stay over, and generally seemed less responsive. However, I asked her if I could take her out on an official date and she said she'd love to. Some days she seems into everything, but then she'll seem to be avoiding talking to me on other days. Maybe I'm just oblivious, but am I doing something wrong?
<bot>: friend of 9 years likes me and I like her, but she waivers between interest and disinterest so much that I can't tell what's going on.