"I was just with Neil and I was teasing him at Farm Aid a couple weeks ago all day about getting a divorce: 'After 36 years, Neil! How do you get a divorce after 36 years?' Then he says, 'Oh, I'm very happy.' Then I find out two days later he's dating Daryl Hannah. I bet you are happy, Neil! He didn't seem as sad as I thought he would." John Mellencamp now understands why his old pal Neil Young was not too upset about divorcing Pegi, his wife of 36 years. He has since been romantically linked to the Splash star.