<human>: My wife and I have been married for around 20 years, and we've had four kids together (the 16 y/o's are twins to clear up any confusion). Our relationship has always been a little shaky to tell it straight but it's always been something we could work out. Recently, things are starting to get a little crazy.

I'm going to try to keep this short, but for the past few months it seems like every time we have even the slightest disagreement (such as where we want to eat, when to go out etc.) my wife will get completely emotional, take the kids and leave. They stay gone for at least 4-5 days, maybe even sometimes a week at a time, with absolutely no contact. I go to their schools to see if they're there, but they're usually absent when this happens. I'm surprised I haven't gotten any calls from the state about their absences, but I'm assuming wife probably told them something (?) to make it work. I have no idea where they go within these times of disappearances, when they return I try to ask my kids but they act nervous and like they don't want to tell me. I'm not mad at them. I know how mom can be. But I'm getting pretty sick of her just taking them without any warning, and me not knowing where my children are for week's at a time. My wife and I have talked about this, and every time she apologizes and says she won't do it again, but the very next time we have a disagreement she's gone.

I'm trying to think of a way to work this out with her without doing anything too drastic, but the games are getting old, and there doesn't see to be any other way to get through to her.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Wife takes our kids and leaves after every little disagreement, getting sick of worrying about where they are all the time. Trying to think of ways to get through to her and work this out.