Just as an FYI, if we do have a simcha, we usually leave after dinner and some dancing and spend some time talking in the car or sitting in Starbucks for a half an hour.
I hope you have a dispensation to only wait 1 hour from meat to milk [as per the ReMo is Yoreh De’ah] if this enhances your Sholom Bayis, so that you can have a dairy coffee at Starbucks, or if this late at nite, Vanilla Bean, assuming there was meat at the Simcha.