We asked readers to channel their inner Carolyn Hax and answer this question. Some of the best responses are below.

Dear Carolyn: I’m struggling to know how (or even if?) I should stay friends with my friend who suddenly announced she no longer wants to be married, refused any counseling beyond (brief) divorce mediation and moved away to a nearby city. She completely blindsided and devastated her husband (primary parent) — and her barely-adult kids. I thought we were close and honest with each other, but everything about this is the opposite of what she’d told me about herself and her values.