Ever since I saw his concert two weeks ago, I’ve been listening to my entire John Mayer catalog of music. I own all of his CDs, and I’ve been a fan for years, and I do listen to him often. But now I think I’ve crossed a line and have become a little obsessed. You know how some artists are just so talented that when you’ve listened to all of their songs a million times, you just wish they could just keep turning out new music because you can’t get enough? That’s how I feel about John Mayer. And honestly, I am talking about his music, his lyrics, and the…