Hannah is terrible, but Nick should not have been on the show.
Hannah is so busy trying to show she's SOOO mature and put together that she only proves herself exactly the opposite. Her lack of emotional maturity - which is arguably one of the most important skillets to possess in a marriage - was on full display when she was REPEATEDLY so unnecessarily harsh and abusive to Nick. An actually mature person would recognize any issue(s), decide if it's something they want to "work through," and if not, just nicely send him back to his mom to finish raising.
As for Nick, he had no business going on a show like this, in the first place. While it's "sweet" and "cute" that his mom "wanted to give him what she didn't have" and they were always there and supportive, etc. It's ABSOLUTELY RIDICULOUS for him to be his age and in his state of lack of independence and awareness of what happens in a home. Is that really love to send grown children out into the world, completely inept?
I wish people would stop fantasizing that someone else will "complete" them. Instead, they should be looking for someone to COMPLEMENT them. That's probably why so many of them "just haven't found love yet." Out here in this world, half-people, trying to take someone else's mental, physical, spiritual (AND FINANCIAL!) energy and resources to fill all their ridiculous gaps. SMH. They all irk me so much. LOL.
This is NOT in defense of Hannah, but if I were her, I'd be quite disappointed in him, too. I have NO desire to be a grown man's mom. I'd just nicely tell him this won't work, I didn't think I'd have to prompt or explain to an adult how to do basic things.