AITAH for getting upset at my best friend for not putting as much effort as I do

So this story starts off with jessica breaking up with her boyfriend eric. Kayla (best friend), Samantha, and eric used to sit with each other during one of their free period classes. Although eric and jessica broke up, kayla and samantha continued sitting with banana during their free period.

jessica told kayla that she wasn’t comfortable with them sitting with eric, so kayla cut eric off, but when she texted him, she just texted him things like “i’m sorry, i don’t hate u bc i don’t know what went on with you guys, and it was easy for me to talk to you bc like i said i don’t know what went on with u guys”.

Anyways, more context about eric, eric was struggling really really bad mentally, with a lot of problems. kayla was really sensitive about that because she had an older sibling who was also struggling a LOT.

Anyways, i told kayla her message to eric wasn’t great, and that it’s “common sense not to be friends with a friends ex” when i was on call with her during this whole confrontation. She went pretty silent and left the call after i kept trying to get her to realize that it’s not okay to be friends with a friends ex.

The next day, kayla texts me how she was being nice to eric because she knew he was struggling and she was upset with me for saying “it’s common sense” and how i was quick to shut her down and she didn’t like that.

I was pretty angry with her already, so i said some pretty hurtful things to her like “i knew he was struggling but i didn’t act that way” and “it’s weird no matter the intent” and “just own up to being weird” She asked for space, and so did I.

Then, about 3 days after our argument, her older sibling got hospitalized for 2 weeks over an attempt.

I checked up on her, but she said she didn’t wanna talk about it. I didn’t check up after that

During those 3 weeks, I was also struggling a lot mentally and those were some of the lowest weeks of my life, and it felt like she abandoned me. I started reposting sad tiktok’s, and when she saw them she checked up on me and told me she still cared and that she was there if i needed to talk to anyone even though we weren’t on the best terms.

3 weeks after our argument, she finally texted me again, saying that she was sensitive to eric because she was watching her sibling struggle and it made her overly sensitive to making eric get worse.

I guess i was just really hurt that it took her so long to clear up that misunderstanding bc it just shows she doesn’t care about me as much as i do. i feel like i’ve always put her feelings before mine and been there for her, but she didn’t care to clear up the misunderstanding with me til 3 weeks later and basically just abandoned me over a misunderstanding. She said she still forced her sibling to sleep on her floor bc she was scared they’d attempt again, but also said things were more “stable”, meaning she’s probably healed, but she still doesn’t want to put as much effort.