Once, after a relative passed away (when I was in my late teens), my mother told me, "He'll always be watching over us."
Nervously, I asked, "Like, ALWAYS-always?"
She paused before clarifying, "Except when you're changing, bathing, mast*rb*ting, etc."
After clocking my dubious stare, she elaborated, "Ghosts are prudes. They'll stand guard, but they won't watch."
I wonder if mc is worried about that the new character might do something to harm or prove detrimental to ml and that's why he's requesting time apart.
Would be nice growth on the part of mc.