Is the boat the only place Klay is really happy

When Meg mentioned the mood swings, we know thats true because everyone that's been around him on land has said he's always depressed especially since the injuries. Kerr, Draymond, Steph are on record saying they tried to cheer him up with little success.
I remember watching the Mavs at the end of the season to see what Flagg was up to and totally forgot Klay was coming in off the bench for them and wondered why there was no trade or buyout talk about him.