ET spoke with royal correspondent Victoria Arbiter on Thursday, who gave us her thoughts on whether Prince Harry is ready to pop the question. She told us Harry has had a girlfriend meet the queen before, but never this soon.
Arbiter explained that at the moment, everyone is looking for any indication that they are about to announce their official engagement, but with the royals, it's always about "timing, tradition and protocol."
Because a lot of attention is focused on Prince William and Kate Middleton right now (the two are expecting their third child together!), Arbiter doubts Harry would steal his brother's thunder. Plus, this month the queen will become the first British monarch to ever mark a platinum wedding anniversary.
Hear more on Prince Harry's relationship with Markle in the video below.