The back seats don’t recline. If you want reclining seats, don’t take the back seats. If that is all that is left, take another flight.
I see not reason to remove 5-6 seats from the available pool of seats, just because some people don’t like them.
They should be listed as non-reclining on the web site, so people who rarely travel would know this.
I often sit in the back row, because nobody wants to, so you are more likely to have a free seat next to you, plus you are close to the peanuts, or whatever it is they feed you these days.
That guy was quite simply harrassing her. The airlines didn’t address the issue when asked to....they could have just moved her seat or his. Better kick the guy off!