Thank you for playing, I'm happy to know this was one of your first VN experiences, and that you enjoyed. :) As for as why that ending is like that I hope you can accept my only answer: that it is largely up for interpretation!! But the story isn't over so maybe things can be resolved in a more satisfying way for her in the future.
well damn...Im not really that good with interpretations but my guess is that it has something to do with the choice with kneeling to Lavandula but that makes me wonder. Are u perhaps considering making either a reddit community or maybe even a discord server? I'd love to see what other theories people can come up with