Is it normal for women to start treating someone as a special friend within a short time, and is it wrong to associate it with romantic interest?

Hey guys, it’s been a while since I posted a question on this sub. The last time I did it, the response was amazing and I got to learn a lot. This time it’s a question which everyone is free to answer, but I would still prefer it more to hear from women themselves.

So, when I was younger, I fell for this woman whom I had started talking to online, and no, I didn’t meet her on a dating app. In hindsight, many things happened which still confuse me about her. The bottomline of all those things is that she started treating me like a very special person, very soon, and this exclusivity combined with my naivity back then made me feel so sure of it being a clear sign of interest from her side.

The things that she did, which make me feel so are :

1. Within a couple of days of us talking, mentioned that she talks about me to her best friend
2. Spent at least a couple of hours everyday talking to me, and that too very enthusiastically
3. Asked me to tag her into some song, and when I chose a romantic one, she said, ” I like it!”
4. Sent me a fun questionnaire containing questions like, ” Would you hug me if I need you someday?” and ” What will we do if we are locked in a room and the key is lost?”
5. Told me that, “I wish you lived in the same city as me! We would have been close friends!” within a couple of days of us talking

These things happened within a week of us talking. Also,

6. Hardly after a week passed, one day she went out with her friend and went live on social media to share it with others. Then later texted me, ” Why didn’t you join it when I went live?”, and then even asked, ” Should I go live again? I will. This time don’t miss it”.

And when she did and I joined it, her eyes lit up at seeing that notification and she waved a hi, and her friend said, ” Look, he has come. At least say a hi, dude!” (As she didn’t notice her waving at me). This made me feel kinda special, as even her friend (whom I didn’t even talk to so far) cared for her to not ignore me now.

7. That very night, she asked me something along the lines of, ” Dude, can I ask something? If sometimes we are unable to talk, please don’t forget me. Please dont, because I consider you a true friend”, which felt a little too strong to be just a friendly message, as hardly a week had passed of us talking and she cared about me leaving or not so soon.

Overall, she treated me like a very special person, and at that point of time I felt that she possibly likes me because of it.

Now, while nowadays I won’t come to the same conclusion as back then, I still wonder till date if all this treatment was clearly a platonic one and I am the only one unable to see it.

I wish to improve my understanding of relationships with this post. Thus, as the title says, is it normal for a woman to give so much exclusivity/special treatment to a friend so soon, or is it nothing wrong in interpreting this treatment as a possibility of romantic interest?