(So when Alma wakes up one day and tells Allen about this guy he keeps having dreams about, Allen will have a lot to talk about.)
Soubi already believes Lelouch is gay, but knowing he is dating Suzaku would clear up so many things. Like maybe why Suzaku doesn't like another guy in the house with Lelouch and the girls. He's used to people who are possessive and territorial. And he's already thinking of leaving so there's more space for Lelouch's sisters.
If Lelouch could pick someone to be Soubi's Sacrifice/Master/Dom, who would it be?