My father started dating my mother's female business partner within a few months after my mother's death. I judged him then but I would not now. When one spouse is sick the other spouse's life is on hold even though they are not ill. My father was present for my mother every step of the way. I later found out that the grief almost made him go crazy -- things like hearing my mother's voice when she was no longer alive. Once I understood this I was happy he found comfort with this other woman who was actually quite a nice person. They did not stay together long-term.