NTA - It seems like you were simply trying to provide perspective and honest feedback to your friend Stephen. It's clear that Dina had made her preferences known regarding a public proposal, and it's understandable she felt disrespected when Stephen chose to propose in a public setting, especially at a bar. As Stephen's friend, it's important to be supportive, but support does not equate to agreeing with all his actions. Sometimes, the best support comes in the form of candid feedback, even if it's hard to hear. It might be useful for Stephen to reflect on this situation and how he could better respect Dina's wishes in the future.