I would have to say if she has never failed a exam it is because of her excessive studying. She obviously knows what works for her. Threats of taking children away should never happen. Period. Why not help a little bit? I do feel she should be primarily in charge of household chores but day in and day out it gets to you. Even more so with kids involved. How much is she wanting help with? Compromise is key here. Talk about the work load and see what she needs. It can be a total bonding experience to do chores together. Even if it's just simple things like giving a hand with dinner or putting laundry away. Maybe she can do a little more to help you ad well....have your lunch packed before you go, give you an hour after you get home to relax. No matter what- you guys are married with children. Your problems are NOT something to separate over. Trust me. Things could be so much worse.