Why is she contacting me after she said she couldn't date me?

Anonymous
So I had a great fling with a girl this past summer. We knew each other a little and went out and hit it off. Reason that it remained a fling was that she was moving 1000 miles away. So she moved and we stayed in touch. It was a very platonic relationship. I never wanted to put myself out there and I'm not sure if she was the same. But we kept in touch, calling, texting and exchanging letters. Eventually I suggested visiting her and she agreed. I went down there not knowing what to expect. I got down there and after being timid for part of my first night I gave her a kiss and she said she had been waiting for it all night. We talked about how we liked each other but it was weird because she lived there and me back where she's from. The rest of my 4 days were great. We acted like a couple, went out to eat, went to a concert, and I met her 2 close friends, a couple. The only sour note was when I brought up what happens to us after I left. She got freaked out and talked about how she didn't want to do long distance and wouldn't put herself in that position. So I was bummed by that but the next day she acted fine. Then the morning of my departure she gave me several kisses and hugs. She told me she'd be home for Thanksgiving and would see me. Over the next several weeks I kept in contact. I sent a care package as she was studying for an exam and flowers when she didn't pass. When the week of Thanksgiving came she reached out to me but ended up blowing me off. She texted to apologize her last day, and so I wasn't going to see her. I sent her a text saying "I'm sorry you couldn't make the time" and she called upset with me. The conversation eventually lead to us and what we were doing. She said there was no "us", we were just friends and that she had told me that she wasn't going to do distance when I visited her. She did say that but she lead me on when she gave me hugs and kisses goodbye. Then when I sent flowers and such she acted fine. Maybe she was still OK with me then. Because while she was talking about how she didn't want to date anyone she could only see every 2 months she said that she had met a guy that she liked. I was not happy with that, but didn't flip out. I knew that it was a matter of time before guys started hitting her up...she's attractive, smart and fun. Anyway the conversation ended basically saying she like my friendship. Well its been 3 weeks and I have not reached out to her or her to me since. Until today when I got a card from her. I was surprised. It wished me a happy holidays but the thing that caught me off guard was this sentence "I know we have been quiet these last few weeks-but you have been on my mind." I was shocked to hear from her but that made me start asking all these questions. What does she mean? Obviously there could be more than one possibility and I'm open to hear what you think, but what I'm trying to figure out is how I respond to her? What do I say and in what method? Do I call, text, write a letter?
Updates
+1 y
Currently I'm not sure what to say but I'm leaning toward replying to her in my own letter/card. I figured if I decided to, I could tell her I am thinking of her as well but I can't just be friends with her because of how I feel towards her. I like the letter because it allows me to voice my thoughts and have them be heard and I think a text or call would be too instant of a response. I know a lot of people say just ignore her but I think that's a very immature method & wouldn't make me feel better
Updates
+1 y
I sent a card yesterday. It said "Thanks for the card. I've been thinking of you also. Hope you have a Merry Christmas and a Happy New Year. All the best-(Signature)." It will be interesting to see if and when she responds. I'm more concerned now if she calls or texts. How do I act with her on the phone? I don't want to sound like I'm OK with being just a friend but I don't want to be rude and unattractive. Any ideas?
Updates
+1 y
Well its almost 2 weeks since I sent the card, and at least a week since she should have received it. No response though. I don't understand why she'd go through the effort to reach out to me, which was bold considering the situation and when I reciprocate she doesn't respond back.
Why is she contacting me after she said she couldn't date me?
4 Opinion