AITAH for resenting my friends for not talking to me?

I moved schools this year, and thus left my 2 best friends. We have all been affected by this deeply, however I can't help but shake the feeling that something is wrong.

My schedule usually starts at around 1PM while theirs does at 7:30AM. They have to get up at around 6, and have been complaining about being tired and not wanting to do anything. I understand that burnout is real, and have tried checking in on them and managing them.

However, for the past 2 and a half months, it feels like I am the only one genuinely trying to keep our relationship alive. If I don't text first, they never do, and it hurts even more if I see that they are/ had been active on a different social media. I tried talking to them about this, but nothing has changed. It feels like they never have time for me, so, AITAH for resenting them over this?

I understand that they are burnt out, but I find it a bit odd that they never find the time to text me a simple "hi" or even send me a video, anything. All of our recent texts have all felt so cold, and I'm unsure if it's my fault for pushing them if they're tired, or if they should also engage with me :(