I'm sure she's lovely, as are many people who I don't find sexually attractive. Working in a brothel as someone who's job is to suck off customers doesn't make her romantically interesting to me, as I wouldn't want to touch her. We could be friends... and if she wanted to get out, I'd be fine with a questline to get her out, as a friend, helping out a friend. Anyway it's by the by, the whole having to break Maia's heart and be an arsehole in order to have the harem route, just doesn't work for me anyway
The whole "oh no, you're breaking Maia's heart by wanting others" thing is rather undercut by having the option for the MC to be married already at the beginning of the game. Not sure what the dev wanted to gain by adding that, especially since the game isn't keeping track of it.