I'm pretty sure "
Divinity" here is a euphemism to
Innocence, given she was a child when they got involved...
I mean, that would be logical since from what we have seen on happy events,
Sensei backstory is pretty much a tale of how much child abuse can fuck up a person's mind.
He got "seduced" when he was a child (by his teacher
Sekai) and did the same to
Maya, under the same circunstasses (Teacher-Student relationship).
Probably he felt so guilty the his mind snapped
About that...
I also think that this passage from the last happy event shows that even though he was manipulated in this "relationship", and maybe even knew that was wrong, he loved
Sekai and felt jealous about her relationship with his brother (that's probably how
Maya feels too).
sev "It’s raining outside. "
sev "You are watching the water droplets dance down the window as a series of noises assault you from both sides."
sev "On your left, the sound of a stereo’s static screaming- no. Singing to your senses."
sev "Ssssssssssssssssssssss~"
sev "To your right, the repeated clacking of a headboard as it slams against the wall, chipping away at soft white paint you helped spread yourself."
sev "You did it together."
sev "But it is not your headboard that clack-clacks today. It is the headboard of someone else. "
sev "Someone else taking the one thing you love as you are forced to sit there and pretend you don’t know it."
sev "Is it easy playing tricks on yourself?"
sev "Were you ever able to laugh?"
sev "Can you laugh today?"
sev "Or do you still pretend it never rains at all?"
That some fucked up shit right there