See that..

That's our girl. It's not about memory loss anymore but more like his personality or the kind of person he is now doesn't making any sense at all. He's basically being petty. Imagine you guys are in rush as your boss pointed out.. that's why you needed to take an overtime yet you see them not doing their part and from your pov they seem to enjoy your suffering.
Pls. We need to separate personal life from work. If there are things that your employee can't share, I think we should know that's the boundaries they already set for their own selves.
I've said it before and will say it again. The reasons she works hard is for her family. If her job would affect her relationship with her family, then I believe she should leave already. It will be hard but in the first place she's in this reputable company because of her skills so it shouldn't be hard enough to land to a job with a better work conditions.