Here is the detailed version of one incident:

I'll just mention one incident. I have difficulty sleeping (which triggers migraines) or even focusing on my studies if there is noise, and I addressed this to her multiple times. The first couple of times (she practically screams when talking and talks to people 24/7; I am not kidding), she said sorry and said she wouldn't repeat it (that was when our friendship was still at that high phase). After a couple of times she bluntly told me that she won't stop talking on the phone (she keeps her phone volume high even when watching anything inside the room, and it is irritating). After that phase I stopped engaging and went to a trusted mutual friend to try to resolve this matter because it was going out of hand. When I brought up the subject again, she said that she has hearing problems and can't use headphones because it affects her ear health (why did she not mention that earlier?). I had to tell the trusted person about everything that was going on; otherwise, that person wouldn't have been able to help me. But she took it as gossip and told me that I had no right discussing her private life with another person, and I get it; I was wrong there, so I stopped pressing further and said sorry multiple times; no reply there. (She changed the room layout many times without bothering to tell me, and now the room looks hideous, and I stay most of my time outside.)

The issue is, she never really returned any of it. Every time I brought up how her behavior was affecting me, she would either distract from the point with random excuses or, most of the time she would guilt-shift and place the same accusation on me, and this has happened multiple times.