this was so promising but the ending..?? It feels so unfinished and sloppy T.T

I read a comment a few months back about how the ending feels unsatisfactory when the commentor was younger but upon rereading, it made so much sense to the story, I truly agree and had the same experience. I thought it was bittersweet and I didn’t like how it felt unfinished but upon rereading after a few years, it felt very realistic and much happier than I remembered. It made perfect sense with the story the author wanted to tell and I enjoyed the fact that they had room to grow.