I had my biggest interaction with my crush on the last day of school. I don’t know if she likes me or if I’m overthinking

I’m a 15M and I have a crush on a girl in my class (also 15). I’ll call her “G”.

This is the first real crush where I’ve actually talked to the girl or atleast more than once... , so I don’t really know how to interpret things.

The first time we really talked was earlier this school year. My seat was taken one day and someone told me to sit behind, next to G. I asked if she was okay with it and she smiled and said yes and made space for me.

She was reading a book and told me not to react if she suddenly laughed or screamed because the story was intense. We started talking about the book and about writing. She told me she writes but is scared to show anyone her writing. I told her I’m working on a web series script and plan to show it to producers someday. She said she admired the courage of mine to show my creative work to others.

Later we had another interaction when we were preparing a prayer song for our school assembly. I made the music and she had written the lyrics. She said her lyrics were cringe but I honestly thought they were really good even before I knew she wrote them. I told her that and she seemed to gain confidence from it.

One day, I was messing with the smartboard in the class, me and bro were entering our names on google to see if we show up, she came upto me randomly, and she showed me that her dad appears on Google because he’s a famous doctor.

After that we didn’t talk much for a while.

Fast forward to recently

One morning before class she saw me and my friend doing homework and asked if she could join us. She moved a bag away and sat next to me to do the homework with us, even though she could’ve easily copied it from someone else.

Another time she asked to see my notebook to check something. Later instead of passing it forward through other students (which is what everyone usually does), she walked all the way from the front of the class to the back just to hand it back to me directly.

Something else that surprised me happened on the last day of school.

On Just One day... All of this happened... Me and my Bro were sitting together, and behind us were her and her bestie.

Well, we were talking and the topic of acne came up. I have acne and her bestie jokingly said she feels bad for me. But G said something like “Even with acne he looks cute. It gives a cute factor.” Then when I mentioned I want a glow-up over the summer she said I already look handsome and a glow-up might not even be necessary.

That was honestly the first time in my life a female other than my grandma directly called me handsome.

Later we were talking about relationships and marriages and she told a story about how her parents met in college and eventually married.

She and her bestie also tried this this silly “challenge” on where two girls call a guy’s name and see which girl he looks at first. When they tried it with me I looked at her and she reacted really happily. Like shocked and smiling a lot...

She also helped me study a social studies chapter that day.

All of that happened on one single day...

At one point she even asked to try some of my lunch. From what I’ve seen she usually only does that with people she’s close with.

Another funny moment happened with a meme trend where someone says “What do you like?” and the answer is “Chocolate mint cookie but I like you more.” When I asked how that would sound in our native language, she pointed at me when saying the “I like you more” part.

But here’s the confusing part.

One of my close friends (who is actually her ex) warned me about her and said she used to change boyfriends a lot. Another friend said something similar.

But a different friend told me that recently she rejected someone who proposed to her because she said if she ever dates someone it would only be with the intention of marrying them someday.

Personally I believe in the same thing. I’m not into hookup culture and I’d only want to date someone seriously. I believe in dating to marry.

So now I’m confused.

Some of her actions seem really friendly or possibly flirty, but I also don’t want to misinterpret kindness as attraction.

This is also the most I've talked with a girl I like. Before that, any crushes, I've only kept them in mind... Either I've never talked to them, or just 1 or 2 extremely short convos.

So I just want honest opinions:

Do these interactions sound like she might like me, or does it seem more like she’s just being friendly?