Mom criticizes ex-husband for playing Fortnite with their 10-year-old son while she has custody of him

She doesn't want her ex spending time with him when it's her turn to have him at her house. 

Co-parenting 50-50 with your ex can be incredibly difficult. First of all, how are you supposed to split the time? Do the kids live at your house one week, and their other parent's house the next week? Are they moving back and forth between houses every three to four days? Either way, it's a recipe for your kids living out of a suitcase, and that can be stressful for everyone involved. 

Some parents are hyperfixated on making sure that everything is equal between their house and their ex's house. The father doesn't want their kids to dread coming over to his house because he doesn't have all of the toys that mom has, so he stocks up on toys and games. The mom doesn't want their kids referring to dad as "the fun parent," so she makes sure that she takes her kids to as many, if not more, baseball games as he takes them to. This kind of competitive parenting can be stressful for kids because they can tell their parents care more about one-upping their ex than about paying attention to them. 

The mom and dad in this story both might be guilty of that crime. The dad plays online video games with his son while he's at his mom's house, in part because his mom doesn't know how to play them. The dad claims that he's only doing it to make his son happy, but he also seems to enjoy getting a rise out of his ex-wife. You can judge him for yourself! Maybe you think the mom is the unreasonable one.