Modest guy and high-maintenance girl. Not exactly the best match, unless she's just a tsundere, since then his patience can work out until she gets a grip.
Red isn't that flashy of a colour. And you can make it less flashy by combining it with something else.
A girl telling a guy to hurry up and choose clothes?
Well, at least she's aware of it.
That is a nice summer dress.
Yeah, never take that couple for anything remotely normal.