Absolutely not, personally. I think the very fact that someone would leave when there's no money in a relationship speaks volumes about why that person is really in the relationship in the first place. Don't get me wrong, I've been in some pretty down-and-out situations throughout my lifetime, including right after my son was born when we didn't have heat, water, or electricity in the house, and the house itself was going into foreclosure. My then-husband's name was on the house (we split up three years later in very different, unrelated circumstances), I could have just up and left at any time without any financial repercussions, but if you really care about somebody you don't just leave them in a lurch, and certainly don't leave them just because "they failed to provide" that for you.
Now, if he'd been refusing to work or blowing the money on other things while that was happening it would have been another story, but that's an issue that goes beyond the money. If someone just takes off and leaves you to deal with financial issues on your own then comes back when you have a few bucks to offer, my instinctive, knee-jerk reaction is RUN AWAY FAST -- what will keep it from happening again once she's taken all the money you have to offer?