Absolutely no one. I've been married for 11 years. My wife isn't perfect of course, but she's still pretty fantastic. She is my best friend, for which I'm thankful. I don't and won't gossip about her.
As a second- or third- hand observer, I can't count the number of times I've heard someone gripe about their spouse and felt sorry for them. Marriage, and relationships generally, are so much richer when you can either get over a minor injury without even mentioning it, or respectfully discuss a more serious one. I know it isn't "cool" to quote scripture around here but the Bible says "Good sense makes one slow to anger, and it is his glory to overlook an offense." Amen.