In the scope of your life, $1000 probably isn’t that much and it’s about the same as a college course. You’ve learned a lot. Those lessons are valuable. This hasn’t been a failure.
It would just feel bad to me to walk away for free from something I was working on that can be tomorrow sold for couple (tens of)thousands (the value doesn't really matter in this case) for free
So frankly there are many people who can start their own companies, but there’s a lot to learn in terms of actually working with people and choosing the right ones to build a company with, too.
The fact that their party can’t be fair regarding their share is already a huge-huge red flag. Many supposedly greedy people I know wouldn’t do that simply because they have respect for the capitalism (or in other words - they know perfectly well that their words are no longer enforceable).