I can't offer much advice except to say I've been there, and I do that. For us, it's usually in the form of eating out. My husband doesn't cook at all right now (he's switching careers and back in school at night plus student teaching on top of that, so he's never home). That's left most of the cooking, cleaning, yard, garden, etc. to me.
I can go a couple weeks of really buckling down, packing all the lunches, cooking dinners, etc, before I lose it and refuse to cook for a weekend, ha! And just to be clear, I'm not resentful, just tired—I very much respect what my husband is doing and support him 100%. He needs his focus elsewhere right now, but it's just hard being the "it" person for a long duration.
The only thing that sometimes snaps me back to reality is remembering that we're both now in lower income potential jobs (education), so we have less wiggle room in all our choices. SOMETIMES, that works. I wish it worked more.
I look forward to hearing what other folks have to say!