Think about it as "putting in the effort could be a net positive, if it works out, but if it doesn't it's not a big deal and it's fine to try again with someone

Think about it as "putting in the effort could be a net positive, if it works out, but if it doesn't it's not a big deal and it's fine to try again with someone else". Worth the effort, but not attaching overly much weight or importance to the outcome.