Wait... which one's the husband here!?An old married couple!
Lit. 'married couple / husband and wife' - changed to 'old married couple' here to make it work better with the previous bubble, and the general Anglosphere trope of 'old married couples argue all the time but actually love each other'THE HELL!?MARRIED!?So those two really do get along like chalk and cheese?Hmmm... I can't really be sure of that myself, but...If you go by their words...The Two's RelationshipThe hell you do that for!?Oh, like you've room to talk!!They're really just so familiar with each other, it's like they're...
More closely, "'anta' and 'omae' makes it sound like a (good) relationship' - but since we can't just use 'anta' and 'omae' here, a more general 'familiar' (as in using causal language without reserve' suffices