Maybe I'm getting soft in my old age, but I've come to admire the willingness to talk, and work through relationship issues the way that Jonathan attempted to, regardless of how simpish it may look.
My reaction would be much like most of you here, and I'd immediately bounce and that'd be the end of it. But on the other hand, I'm walking away from something I truly value... And not fighting for it at all doesn't quite sit well with me.
Either way, I really enjoyed the series, and watching these two with polar opposite personalities, navigate their complicated marriage, personal issues, and the somewhat happy conclusion with both of them finding finding some peace in their lives was a great touch. Having gone through a rough split myself... I related to both of them in a lot of ways.
All in all, I thought it was a fantastically written, acted and directed series. Loved it.