Roy using a little toy knight to put the battery in - it reminds him that he used to be Matthew Knight, once upon a time.
June wakes up in her own bed after the plane crash, only to find that Roy has not only left thoughtful little notes around the place ('I enjoyed meeting you'; 'Eat a good breakfast'), but has also set the table, made her an omelette, put an aspirin and a glass of water by her bedside, and tucked her into bed and hung up the shirt she had on, without compromising her modesty.
Roy not just protecting, but actually taking care of Simon; being patient with his idiosyncrasies, keeping him calm and engaged. Roy even gives him a little Hall & Oates badge when he notices Simon likes their songs. (On the other hand, it's probably got a tracker in it...)
Roy monitoring his folks' place round the clock to make sure they're safe. Also, Roy's parents keep winning the lottery and getting free stuff; looks like Roy is providing for them even though he can't let them know he's still alive.
And at the end, the Stinger shows they've "won" plane tickets to Cape Horn - that is, where June and Roy are now... They're both in for the best surprise of their life - their son is alive and happy!
At the climax, Roy breaking cover and striding over to kiss a truth-serum-addled June and assure her that he's happy she came to Seville to find him.