Bruce Jenner feels lonely

Los Angeles: Former American athlete Bruce Jenner is "a bit lonely" since ending his marriage to socialite Kris Jenner last year.

The 64-year-old, who parted ways from his wife of 22 years in October, 2013, is trying to embrace his freedom. He reportedly underwent a procedure to reduce the size of his Adam`s apple last month, and he even grew his hair long in a bid to look young.

"He totally has this `I may be an old man, but I`m cool and young too` syndrome and no one can tell him otherwise," a source told

"He`s a bit lonely, but he`s doing his thing. Everything in the end of his marriage just became too much for him and his freedom is really liberating. He wanted to grow his hair long, so he did it. He wants to get manicures, so he gets them," the source added.

Bruce, who moved into a house in Malibu, California, after his marriage to Kris began to crumble last year, doesn`t care what anyone thinks about his new image, including his youngest daughters, Kendall and Kylie.

"People in the family have brought up his hair or his clothes, whatever it is and how absurd they think it is, but Bruce doesn`t care, nor does he want to listen to any kind of criticism.

"He thinks he looks great and cool and that`s that. But at the end of the day, however ridiculous people may think he looks, he`s happy about it - or at least trying to find what he`s happy with - so you really can`t blame the guy for that. He`s doing what he wants to do. It`s just a matter of choice and not everybody has the same taste," the source said.