Have you started to separate your finances? Perhaps it is time to look at that... I tried not to for the longest time until I had no choice but to separate mine and H's. You can't let *their* MLC crazy lifestyle choices/spending affect the way you and your children are provided for.
His lifestyle is his choice, and your children are relying on you to protect theirs and your lifestyle.
When/if you choose to allow him back into your life, you can revisit the issues and decide what arrangements can be merged again or not. Your choice.
Keeping things enmeshed financially does not bring you closer together IMO, only provides fodder for the MLCer to latch on to and complain about.
Separating things financially doesn't bring you farther apart IMO.. separate cities is pretty far as it is... It is merely a way of protecting yourself and your children from the MLCer chaos...
~ This Diamond now SHINES!! ;-p ~
My Sitch in MLC - http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Main=45253&Number=1901148#