A wiser person might hold their tongue. Wiser people don't wind up gods.

"You're a real piece of shit," Baphomet says. "From pure utility, you could still be better off helping her. Make it so she doesn't turn off the faucet the moment she finds a more appealing boyfriend. Which, honestly, sounds like it could happen any time."

Get her better off. Earn her loyalty. That information will keep flowing. It's like the way Charm Person always wears off, and the one subjected knows what's been done. Not a one to one match up, but close enough.