Is OTHER wrong in the post ? POST : I'm the oldest of three. My siblings are 7 and 11 years younger than me respectively. 

I went to the college I went to because my parents told me they couldn't pay much, so I tried to apply to places that would give me money. My parents knew absolutely nothing about the college process - I did all the research/ calculations/ etc on my own to figure out what MY stats were, what the stats of the colleges I was applying to were, how much money they were likely to give me given the discrepancy, etc. 

I ended up going to a small liberal arts college (with stats well below mine) that had a big scholarship fund and although sticker there was around 65k inc. room/board, my scholarship meant I went for less than 10k a year and came out with no debt. 

My younger sister is not as good of a student as I was and her SAT scores were significantly lower. (Despite my parents paying for private 1x1 SAT tutoring for her, which I did NOT have.) But she applied to a bunch of schools that her scores fell within the average range, and most of them were state schools in the NEIGHBORING state, so my parents can't take advantage of reduced tuition, and they don't have huge endowments to give out merit scholarships.... And for that reason she didn't get ANY scholarship money. From ANY schools. 

My sister has a track record of wearing my parents down until they give her what she wants. So today, she calls me THRILLED telling me that she convinced my parents to pay sticker price to her top choice school. I just couldn't bring myself to be happy for her because she KNOWS my parents have another child they need to put through college and can't afford to pay that much for her without going into debt.

I told her I wasn't thrilled that she put my mom and dad into that position and suggested that she wait until her appeal meeting with the school (next month) about getting more financial aid money before she starts posting all over social media saying she's going there. She got extremely upset and told me that she just wanted me to be happy for her and I was jealous. Then she told my mom I was upsetting her, and now my mom is in my inbox, angry, telling me to "let her have her day."

I guess I am jealous. But I feel like if I had just been inconsiderate and chosen my top choice school regardless of how much money it would sink my parents into a hole, theres no way they'd have paid it, and I'd have been stuck either with loans or at a community college. One thing to note is that because I'm the oldest, at this point they understand how important college is, whereas they did not when I was going through it. They helped my sister through the process due to their familiarity with it secondhand from me, but I did ALL of it on my own.

Anyway... am I the asshole? Should I have just sucked it up and pretended to be happy? Probably but I'm curious and I can't stop thinking about it. 