I think date night is very, very casual. Like, I think that they have enough ‘working dates’ that Natasha is never like, ‘I really need to see Clint in a suit’ and if she wants to, say, go for the ballet just for fun, I think she’d take one of her girl friends (I vote Sharon Carter). So date night for Clint and Nat involves bad movies on cable, takeout, and sex. Or maybe some sexy sparring and then actual sex.