not only that, couples own dressing should compliment each others.
Talking about complimenting each other, you remember in 90’s it was pretty common amongst newly wed desi couples to go out in matching jean jacket or matching t shirt and jeans .. just to announce to the whole world that they are together 
I am so scared of that phenomenon that to this day, I dont even wear same color shirt as wife’s dress. If it accidently happen, I make sure that I change 
Nothing. They should go to JCpenney.