Late to the party again
I know they'll revel in all the negative comments and stuff, but if I was one of their actual real-life friends I'd be a little bit gutted, if not heartbroken that they don't even acknowledge any of their real friends. They don't have to be in photos, or in stories.......but you know the odd mention would, I'm sure, make their friends feel a little appreciated. Especially at this point in time.
If the only time you mention your friend is to up your insta engagement, then it doesn't really count.
I actually feel a little sorry for the pair of them this evening!