John Mayer is John Mayer. Does anyone ever think otherwise. Taylor Swift will have a lifetime of songs she can write about her time with him. Everyone who has ever dated has a lifetime of stories about him. At some point John Mayer turned from being a singer/songwriter to a guy who liked having sex with famous women and that became his main goal in life. Katy Perry is supposedly really hurt that she got dumped. I feel sorry that someone dumped her, but if she didn't see this one coming from a million miles away then she is an idiot. A big one. She married a guy who used to have sex with five or six women a day and then suddenly expected him to go cold turkey and then dated a guy who had a very very slightly better reputation when it came to numbers, but way worse in the way he treated women.