One thought I had about the sound was that once I had the volume dialed in where I wanted it based on the music there was a drop off when the dialogue kicked in... but this is a problem I have watching Hollywood features on Blu-ray too, so maybe it's just me... just throwing it out there though.
His facial expression once she walked away cracked me up.
Not bad, but does feel a bit long for what is essentially a single punchline.
That's also the quietest party I've ever been too. In fact, once he walks over to her it pretty much feels like they're completely alone in the apartment. Might want to add a little background music & chatter to keep it feeling like a party.