Talking stage, need advice

r/

A few months ago I(16M) met this girl(16F) who I saw in my freshman classroom, I didn’t approached her because I had no chance, so until my sophomore year I found her Instagram and decided to take my chance. I texted her and things went well for 4 months until I followed one of her friends in my suggestions on Instagram even though she stated that following people means nothing but the reason she got mad is because she thought I would text her friend and I followed him is because I want followers and wouldn’t have stayed following him unless he followed me back. We got into an argument and she decided to stop talking to me. I’m wondering on what I should say to her to get back into talking to me again?

TL;DR- I want to be with her and I got sights on no one else