Friend at uni has been acting weird lately and told me that she does not want to be friends anymore but just stay in good terms instead

Hi guys! Thank you for reading this post.
I (21F) am in the same class as a girl I'll call Ana (20F).
We met at school in september and since then, we've been having every lunch together, would always go grocery shopping or study together, etc. We were always together and people in our class used to joke about how we would die if the other one didnt come to class one day, or even told us that whenever they talk to us, they feel like they're interrupting a serious meeting, just because we would not pay attention to anything else in the world but us. Another example, she once sent an email to a teacher without mentioning me at all and the teacher added me as a recipient and said "hello Ana, hello *myself*. Anyway, I thought we were the best friends ever and everything was good.

For the last week, she has been acting very weird: she stopped texting me (we used to text and send voice clips every night), she told me a few times to go eat on my own and that she would rather stay in class, would not talk to me for hours and then come back all happy and making small talk, etc. I just assumed she had some trouble at home and asked her if there was anything she needed to tell me, but nothing else because people have their moods and it really wasn't a big deal.
Until yesterday. She sent me lots of voice notes (bear in mind, she hadn't texted me at all for a week) and she basically told me that she did not want to be friends anymore, but just stay in good terms, because she has enough friends and does not want us to shift from classmates to best friends. She added that it doesn't make a lot of sense and that i don't have to reply anything, but that was her feeling and our friendship was over. She then added that she felt like our friendship broke the day I didn't go to the supermarket with her.... ????? To her, that meant we should not be friends anymore. Basically, she makes a huge difference between friends and best friends and when she realised I would never be her best friend, she broke the friendship.
I did not reply to the voice clips, waited until the next day (aka today) and saw her at school. I gave her back a book she lent me, but did not tell her a word until she ran after me to ask me what was wrong. I told her that what she told me does not make sense and that I respect if she does not want to be friends, but then that implies she does not talk to me anymore and we go our separate ways. She told me that's not what she meant and that she just wanted to let me know that we're not friends anymore. Anyway, a huge mess that does not make sense. I ended up telling her I don't wanna talk to her anymore and then left.
I ended up thinking that maybe she was in love with me since she insisted a lot on the fact that she did not want our relationship to go further ? Mind, I am a lesbian and in a relationship and my friend is straight with no interest in love yet. So it is very unlikely, but that is the most logical thing I could think of.... Or are there actual people who break friendships just like that for no reason ?

I swear ours was not toxic at all. We talked about everything without any issues, she used to be late all the time or forget her stuff and I always provided her with infos or stuff she missed, we had very clear boundaries and were very respectful, never fought not even once...

Last but not least, there are a few things to know about her. This girl is invisible. She hates pictures and told me she does not appear on any, not even family or holiday pictures. She hates social media and does not have any either, and left her business school after a year without telling anyone although she successfully passed her year.
I always told my mom this girl would disappear one day because she is impulsive, does not like to make friends, does not want to be tracked... and I am afraid she told me all this in order to break up the only link she has to someone in this region before going for good to her dream destination (close to the ocean).

These are my two guesses: she either is in love with me and decided not to talk to me anymore for that very reason, or she intends on going far away from here without telling anyone.
Now we are on holidays, I am not going to see her for 2 weeks and I need some advice.
What can I do to show her that I respect her decision and do not want to talk to her anymore, but not make it ankward when we see each other again ? What else do you think such a reaction can mean ? Please mind, she is also perfectly allowed to not want to talk to me anymore and she does not owe me anything. But I stilll need other opinions and advice on that.

TL;DR: classmate I was good friend with decided to break our friendship because she "does not want another close friend" but does not understand that I do not want to talk to her anymore as a result. Am not hurt or sad by any mean but would like to know what you guys think.

Submitted February 05, 2021 at 12:22PM by Jbwadlow1 https://ift.tt/3jnfKeM