And Luke is avoiding dropping any bombshells until they're somewhere private and quiet because he knows his own over-emotional reactions and he knows Anakin is much, much worse about it.

Yoda, of course, hadn't wanted to train Luke. Had point blank refused to entertain the idea for a good three years until Ben just foisted Luke onto him and even then it had been a fight. Which happened in front of him like he wasn't there.

Of course, prior to becoming one with the Force, Ben probably hadn't known where Yoda was. "Yeah. Ben... I think he'd been watching over me for a long time, longer than I realised. He gave me some basics, but we didn't have very long. Days, really."

But Luke had felt Ben's death. Maybe there had been a bond between them because of Ben's care over the years, but Luke felt his death like he hadn't felt his aunt's and uncle's. "I was nineteen then. I think? My uncle wouldn't let Ben train me. Maybe he hoped it would all just go away. I spent a few years blundering about on my own before Ben pointed me to Yoda."