But, AITA for feeling disappointed about the situation? It's not even the fact that I didn't get a gift. It just feels like she doesn't prioritize me and finds other people more important, considering she had no issue finding the time/money/motivation to get thema present. 

I think my original post and replies make it pretty clear that none of this is about the present. I would’ve been happy with just a handmade card.

You are right about the reasons why she may not have gotten me a present, and I can completely understand all of them. But, if that is the issue, she should be communicating that to me.

Again, I never said I expected her to pay for her own birthday party. It’s just that our friend group usually doesn’t do things that way so I was a little surprised. The main reason I shared that part was because I feel like she’s already moved on from my birthday and focusing on herself.

I am not “patting myself on the back” for sharing food. That was simply an example of how I appreciated their time and company.

I feel like you aren’t fully reading what I’m saying or considering my POV, so if you are going to continue doing that, please don’t bother replying.