Progressing spiritually seems quite unlikely if you leave people on bad terms. If it were not for the way we treat others what significance would spirituality have? It is never too late. We can always rectify our actions or lack of them regardless of what response we recieve. Sometimes an apology or an act of kindness is much better than nothing. How can we even use such meaningful words as soulmates, soul flames or soul stars without this lasting quality that makes such words meaningful?
Maybe we will always be confronted with egos that exhibit bad behavior, and therefore can provoke. Those interactions are just pulling me back down when I want to go up. You can sugar coat your words to anyone you wish all you want, and try to rectify any situation honestly from the heart.
But it still comes down to the self, and God communion.