confused about dialogue

[autumn wasp]

in the relationship quest where you go to the crypt with sebastian, i'm confused about some dialougue between ominus and the player character. Why exactly would you need to use imperio on ominus? I don't really understand that entire dialogue line. i could have just misinterpereted something like that, but i just don't really understand it

[gilded flare]

So that it would absolve Ominis of responsibility for Sebastian removing the relic from the catacomb, and thus Ominis could quit protesting and keep his relationship with Sebastian intact.

[autumn wasp]

ah ok ty