"Has anyone experienced this? My friend is writing that she left her s…

"Has anyone experienced this? My friend is writing that she left her son with a woman who lives with them, she has done so on multiple occasions. But this time, in the evening, this woman was giving him a bath and at that moment, he started looking around, searching for his mom, then began crying very hard. After that, he wouldn't let go of his mom, even on the playground when they walk, he goes to pick up his toy behind the fence, he starts crying as if she leaves him. The friend says that every evening she gave him a bath with her husband, and then put him to bed, but this time they weren't there together, and now he can't look at her.