do what?

Ok, so if you where friends with your X and talked on a relatively regular basis and then one day you where at dinner with a few other friends who also know your X suddenly and they say; “I hear X is engaged…” Your thought pattern goes something like this over the course of the night: “do what? No. Maybe. That’s just rude. X did not say anything to me when we talked. That’s rude, why didn’t…?” I don’t know call me a strange person but considering we still talk regularly—we talked for a few minutes just the other day (I assume this did not just happen if these people know and I know the boyfriend has been gone for a week plus, at least I think that is the boyfriend.) I am beginning to think that I don’t have such a good relationship with this X… And I though I did.