Busy friend gets angry when left out of plans

DEAR HARRIETTE: This year has been extremely busy for me and my core friend group. No matter how much we try, it seems like every time we try to pick a time we can all be available to catch up and do something together, we fail. I recognize that being busy is not always something people can change, but still, isn’t it important to make time for the ones you love? One friend in particular often puts us off for months at a time or simply doesn’t respond.