I am sorry to hear about your husband spending money you can not afford to spend. My husband also took money from our saving account, that we setup to pay our taxes. This was also a time he said he was not drinking, and once again I kind of believe him. But I was also checking our main account, and it appeared he was not spending very much money. I ended up looking at the saving, and I was in shocked that he spend that kind of money in a month.
He too used the debit card from the saving to go to the bar. What I ended up doing was move what money we have left into a new account, one that he can not get to. I know how hard it is to be dealing with someone that, has a drug problem. I feel for you, it is hard even if they are not doing drugs at this time. It is always in the back of my mind, when is he going to spend too much money on drinking, it is hard to trust. I am trying to get some peace, myself. Take care of yourself and your child. Try to take one day at a time, that is what everybody tells me. And when the time is right to talk to him, do it in a safe place.