Don't move away from your support system. i have twins and i know how utterly difficult it canbe. what i would also say is that this is a difficult time for you all, its like nesquik insta family - and men sometimes in the absense of anything else think that woman should be some apron wearing housewife whilst they go kill wilderbeast.
thing is - he to is adjusting and 5month twins and the havoc of all this newness isn't really the time to be making lasting relationship decisions.
if he's being a complete wanker but he loves you - there will be a comprimise.
maybe you can activley help him find a job closer to home, maye you could discuss going part time to ease the burden - i dunno - but i do know that this needs a sit down conversation. with rules.
yes pretend you are both 7 years old in class - you need rules, no shouting, constructive - where are we going, why are each of us unhappy and how can we help each other make things work.
like your writing a story
beginning
middle
end
write things down
aim for something together.
any reasonable person can see that just comin home one say with " i've got a job up north, pack yer bags chuck" ain't gonna cut the mustard.
he might feel pressured - maybe there are financial things going on you dont know about - maybe pressures at work then he comes home to " bit more help wouldnt go amiss you know, i haven't even been out of the house all effing week" isn't pleasant either.
i'm projecting
you both have your issues no doubt, and both of you wnt the other to say "ther there, shit day? bummer, your so good ...blah blah arse licky blah"
but if you both want a bit of appreciation and neither is giving becuase each thinks they are martyre supreme - then your at stalemate - so sit down talk is needed
hope this helps