I have no idea what you are referring to. This isn’t a question of ingroup or outgroup.
In this instance of course what you're proposing is very mild: you think they should suffer one another's company - which you imagine would be a terrible experience. Unless you further imagine that they'd like it? But my impression was that you thought they'd have a bad time, and since they're your non-compassionate outgroup, you very compassionately don't care.