He has been happy, but he's happy with Rosie, too. His dearest friend in Darrow, possibly one of his dearest friends in his whole life. There's no reason that he should be so incapable of maintaining at least checking in and making sure that she's okay in her day to day.

"You're never going to spoil things, Rosie."

He leans against her shoulder gently, quiet for a moment. Even he doesn't think his advice would necessarily be very good, but he certainly does have a lot of practice at this point, if Rosie ever wants to bounce her concerns off him. And, more than anything, he'd rather help someone else with their relationship concerns and focus somewhere else than his own tragic failure.