The hardworking one doesn’t confront people when she has an issue with something
There isn’t much you can do with that except be kind and clear that you’re not going to either and you like them both so you don’t want to hear about the other.
Sorry, what do you mean by this?
Bad habits would be,
hard working has expectations that everyone will work the same way (bad habit)
less hard working does their own thing and no one talks to them
hard working complains to you about less hard working (bad habit) and you don’t shut it down (bad habit)
less hard working has no idea of what’s going on and you probably treat them different because you don’t know what to do. Your freezing (not a bad habit but something that can be adjusted to fit the situation)