Everyone goes through this. I was the one to end a couple of my relationships. When it was over, it was over. I no longer had the same feelings, especially the one who was sleeping with someone else but wanted me still to support her. You can guess how far my feelings went with that one. So there's hurt feelings for a while and then I get on with life because it's not good to keep carrying on. Plus not having to deal with a formal contract process, it's easier to move on. There's not an artificial time element to deal with.