Ben was a mess. All he had in his life were missing and malformed pieces of what everyone else saw and expected. The light side. The dark side. His father's memories of him were no different, just a little bit kinder. He liked thinking about them, but his mind kept falling into doubt, guilt, anger, fear... everything that Snoke used to manipulate Ben Solo from the very beginning.

For most of the trip, (despite having the vast expanse of the Ervana at his disposal) he secluded himself in that cargo hold, often using the Force to seal the door shut. Anyone standing on the other side would hear angry shouting, violent outbursts and broken sobs.

If left to his own devices, he couldn't pull himself out of his own twisted mind. It might be more merciful to just give him some kind of order to follow or task to do. Something, anything...