Kids should never be dragged into adult financial issues. Your son and his wife need to grow up and handle their own responsibilities—private school is their choice, not yours to fund. Don’t sacrifice your retirement to keep them comfortable.
Take time to decide what you want: a closer relationship, more distance, or healthier boundaries. Don’t let your son’s “old and alone” remark stick—he lashed out, but it doesn’t define your future. You’re allowed to feel hurt, but process that pain before deciding your next steps. Strong boundaries can lead to healthier relationships in the long run.