And when he sees them happy and smiling at each other, he notes the cause and circumstances, hoping Lily does the same.
And a family feast is had; the evening draws to a close. Adam watches to see how (and if?) farewells are started and finished, and notes that too.
Tempted as he is, he does NOT suggest "Just stay here and go back in the morning."
And after cleaning up, Adam goes to his new bedroom to sleep. Alone.
(End scene)