See, noobie, this is what happens when you don't horribly overthink things! Unforeseen complications! Consequences! Loud noises!!
You should have thought about this idea for at least 12 hours in a pitch dark room in total silence before proposing it.
That being said, Anno could just be a little tipsy and sort of force her way into the flirts. She doesn't even have to be outright jealous, but just kind of... overeager.
That sounds like an invitation for Steele to just turn around and propose a threesome