AG - don't think it's OK confronting colleagues, you go to your manager, don't think it's something we should say
Im not clear if this is AG quoting, or AG's own words - if the latter, it's a disappointment, she's been OK so far, but isn't 'confronting the colleague' what you're supposed to do, in the first place, then escalate it?
Not 'confront' as in aggressively, but talk to them about the incident in q.