The game does a great job of providing dialogue paths for those who want to tell the story where their character has buyer's remorse and is essentially trapped in the relationship. I like these options, because it is definitely a valid narrative arc to pursue.
What's lacking is the content for anyone who decides they made a good bargain and are happy with the arrangement, conditions and all. Which I strongly believe is also a fair perspective to have on how matters play out. The conversation prior to be turned isn't particularly subtle. I think it's made clear what the main character is getting and what it will cost them, so if they choose it they're not necessarily being duped or manipulated.
I'd actually be happy with a scenario where they add a kiss, but it feels transactional. For example, as a reward for actually going out and gathering a juicy tidbit of gossip from one of your companions. A bit more dialogue wouldn't go amiss either, perhaps reminiscing about one of the parties you hosted together and how tame this one is in comparison.