Love this movie but the Lover...
Possible Spoilers:
The lover is so sleazy. Good Lord. If you are going to cheat on your High Class husband, at least choose someone a little more up to par. Yes, Artists are very cool of course. But he is just so gross as a romantic partner. I don't know many women who would want his drippy paws all over them in a public Art Gallery.
Granted, Michael Douglas' character was very controlling so I get that. But there is something called Divorce. Especially since she was the one with the money.