My intentions are not to be harsh in writing this response.....
I'm a firm believe in the "for better or for worse" vow within reason. Certain things are unforgivable in a marriage, but I don't believe this is one of them in this situation. Money, spending habits are things I believe people have to address before getting married - but, that doesn't help you right now.
I spent my sophomore year out of college for no other reason than money. My parents had gotten deeply into debt during one of the last recessions, and my sister and I both worked multiple jobs to help pay the mortgage. I was so upset that my PhD father wouldn't get a job paying $6/hour like I had to help pay the bills - I didn't understand that he was so overqualified, no one would hire him.
Even when I was laid off last year, I never knew how hard it would be to find a job with my professional background. I was lucky to get back to work in 3 months at 80% my previous salary and no sales commission that I'd received the previous 9 years. Some of my colleagues also laid off last May have yet to find jobs.
I have known several people who have gone on shopping binges when getting laid off - it's their way of dealing with it though it's completely illogical. Perhaps he's in a HUGE state of denial and is deeply depressed because he can't provide for your family.
My mom wanted to bail on my dad during their rough financial times blaming him for having been an entrepreneur instead of a steady job with a more stable company. She couldn't accept that she'd contributed to the debt as much as him by choosing to be a Stay at Home Mom (even in rough times) and with her spending habits. Even now, she has no control over what she spends because she desperately needs other people's affirmation.
So, I say no. I believe you need to find a way to work through it, come to resolution (see if there is free church counseling, financial counseling, etc). Rent books on financial responsibility from the library. Even if it means having to take a lesser job than you're worth so you can provide benefits, I'd take it upon yourself to do whatever you have to to keep your daughter, husband and you taken care of for the time being.
That being said, if it were my husband, I'd be giving him a swift kick in the rear regarding reality. When I was laid off, I'd saved over a year's worth of salary and had it liquid in the event of something like this. My husband has a few hundred dollars in his personal checking account because it burns a hole in his pocket.