it's a big sad day it seems

Am I a bad person? bc I feel incredibly selfish; Context: I just got home from my big end-of-the-year choir concert. I invited two of my favorite irl ppl, neither showed up. Left the auditorium all happy bc my dad said we may go get ice cream afterwards, but my mom snapped at me when I asked bc my sister had been annoying and needed to be home bc she had a big test tmrw. [Mind the fact that nth like 'good job' or 'that was great' was said] I run back to the choir room to grab my headphones, come back, and my mom jokes "sorry, we forgot your flowers" and I just kinda laugh softly and said "never gotten them before, why expect them now?" now my mind's racing like "did they actually get me flowers and actually forget, or are they just joking around?" bc the only person to ever get me flowers was my science teacher that I hadn't even had for a year. OH but my f**king sister gets flowers for her dance recital, I see. So now I'm sad about the fact that I don't get ice cream along w everything else like one of the songs [For Good from Wicked] made me so sad bc it reminds me of one of my friends. I just feel bad for being so sad abt not getting ice cream or none of my friends showing upor not being told good job or getting flowers, like I don't deserve it