These other folks have given the good answers.
It could easily be a little awkward, that's ok. It is just an indicator that there is the perception of something "on the line" and people want it to turn out well. Odds are though, that there won't be any catastrophe, everyone will be on their best behavior and will all be friendly.
I say, don't forget that it could be fun! Two people you love are meeting and it could be great!
Me: male, 43, straight, non-hierarchical, independent