Relationship Advice. Why her bahaviour changed ? Is she hurt ?

How to make things better again. And is she hurt or just ignoring me ?

I am 19(M)preparing for exams at a local coaching center. Initially, I was a self-centered and introverted type of guy. Then one day, she (19F) joined the coaching. In the first two weeks, she gave me enough hints and attention to suggest that she liked me. And I was already fallen for her at day 1 One day, during a function, I gathered the courage to offer her a seat. We talked, connected personally, and even went home together.

Coincidentally, our houses are in the same locality.

However, these sudden reactions from me started rumors in the coaching center. Since I was older than most of the others, people began teasing and taunting her. After that day, she started ignoring me at coaching.

After the Christmas vacation, she began giving me late replies. I tried to clear everything up, apologized, and explained the situation, but she still didn’t talk to me at coaching. However, she did respond to my texts.

Then, suddenly, she started ignoring (late replies , dry text )me both in coaching and over text.

Yesterday, I confronted her and talked to her in person. That’s when I noticed that she had saved my number because her dp and bio was visible (it hadn’t shown since the teasing incident).

But I think I made a mistake. I had a habit of messaging her every day at 8:30 PM, but yesterday, I didn’t message her.

Today, I saw that she has unsaved my number again.

I really want things to go back to normal. I need advice and help. And please clear am I the villan here ? Please