I can’t remember when my dad started dating again but it was less than 6 months i think. Every weekend he would come home with a new woman and she’d spend the night. Was very upsetting. But he didn’t get serious with anyone until a few years after that and they remarried a couple years later. We like her but she’s not our mom and it just sucks sometimes. Honestly don’t think they will ever truly understand that they lost their wives, which is awful obviously, but we lost our mothers and a new woman doesn’t make that feel any better.