I am SO freaking weird like wtf...
Ok, so imagine that Hank DID actually go to Cleveland to have his own personal aquarium so that way he can be in a state of solitude... NOW imagine when he meets the person that has to keep him in check and make sure he's well and stuff... That's when Hank develops a new goal..win the heart of his new care taker.
Will he succeed? Find out for yourself :D
(If you haven't seen Finding Dory yet, go see it before reading cuz there may be spoilers!)