J.,
For lack of better words...nip this in the bud now before you get into severe financial trouble. If you need to have a meltdown to get his attention...do it. If you are afraid he will have a meltdown if you confront him...don't worry about. He needs to come to the realization that you could loose everything if he is not careful. Do the following first though:
1.) If you have access to the bank account and your finances, check EVERYTHING out. Find out how much he has been spending. Find out what is left.
2.) Next, what you dread the most, get started calling everyone in your stack of bills. Explain to them your situation. Tell them you are trying to work everything out. They need to know you are trying to "clean up" the mess. Keep in touch with them. Usually, if you put forth the effort, they will try to work with you if you aren't completely over your head.
3.) If you are in deep financial trouble, seek a financial advisor. Or someone you know who can help you figure out your best course of action get the bills paid off. You need to do this ASAP. You name, whether you like it or not, is attached to his debt.
4.) What kind of "toys" does he have? E-bay is a great thing. And easy. And sometimes, things could disappear to make a payment. I'm not saying this is the best idea, but he hasn't left you much choice.
5.) Remember, financial problems are a leading cause of divorce in America. Try to get some counseling for this for both of you. Maybe you could even talk to your in-laws regarding giving money. Maybe you could persuade them to give it to your kids rather than dad. Set your children up an account so they will have the money they need for their activities. You could also talk to his boss in confidence if it came down to that.
I wish you luck. Debt is a horrible thing and feels like a bottomless pit when you are in it. Just remember, you take the lead. You show him that you are a strong woman and that this is unacceptable. He should understand that. He maybe won't want to, but he should if he cares about you and your children.
Please e-mail me if you need any support. I'm happy to chat.
Good luck!
Lee