The real twist will be if he is NOT faking it. Then he'll realize that a hooker in her 20s can't help you while you're confined to a bed and need real care and attention from a grown ass woman. That may be a way for him and Dani to grow closer again. I don't like it... but it's possible. Especially if the doctors order him to abstain from "excitement and sex". If Hayley doesn't work her magic on him every day... her cards are a lot less strong. Without sex, I'm quite sure... he'll start missing the family meals with the crazy wife and the kids. Hayley is fun, but she's not that deep.
All of this reminds me of... how some men treat their wives badly... cheat on them... desert them for a young inexperienced selfish girl... to only then in a year or two... NEED someone to take care of them and be there... and now they start calling that ex that they called old last year. Typical behavior.
But I think you guys are probably right and he's faking.