The best repartee in that vein was at the party in III. Michaal says, "I protected my family from the horrors of this world." And Kay, newly assertive, replies, "But you became my horror." You go, girl!!
That's actually one of my favorite scenes. I love how Kay rips away all of Michael's "but I HAD to do it" excuses and refers to him as a common hood. Beautiful acting by both of them.
There was a lot of real feeling there. Both Pacino and Keaton have acknowledged that at that point they were breaking up in real life. They'd been on-again, off-again for 18 years at that point.
"I got news for you. If it wasn't for the toilet, there would be no books." --- George Costanza.