Jennifer Aniston is worried that men won't want to date her, thanks to her relationship with Brad Pitt.

The former Friends actress apparently now fears that she will end up being lonely for the rest of her life, according to a report in the Sunday Mirror today.

"I want to be with someone, but it just doesn't seem to be happening," Aniston told a friend. "Men don't even approach me - they're threatened by the fact I was with Brad."

Aniston is also unhappy about the short period of time that it took for Pitt to find new love with Angelina Jolie.

"Brad's a free agent and he can do what he wants," she told her friend. "I ended our marriage and I expected him to start dating again pretty soon. But he told me time and again there was nothing going on between them, when it's now so obvious there was."

However, a friend of Brad's has insisted that he only became close to Angelina after his marriage broke down.

"They were not dating, but Brad admired Angelina," the friend explained. "She's very warm while Jen is much cooler."