A source close to the singer said that when Kylie is away from the crowd, she seems to be a person, who is alone and tired.
"In her quiet moments, when she is away from the crowds and the cameras which follow her everywhere, we're seeing an altogether different Kylie these days. She is rather tired and rather lonely," the Daily Mail quoted the friend, as saying.
The source added that the singer is just good friends with Dahm, who is a married man, and that their relationship would have been different if he was single.
"And while she is genuinely just good friends with Alexander, there is no denying that she would feel entirely different if he was a single man," the friend said.
The confidante also said that although the 38-year-old wants to share her life with someone, she can’t bring herself to trust anyone after the way her former beau, actor Olivier Martinez treated her.
"The fact is that Kylie's desperate to find someone to share her life with, but after the way Olivier treated her she just can't bring herself to trust anyone," the source added.
The friend also said that Kylie is now concentrating on looking good, and ensuring that the ageing process doesn’t show.
"She hasn't really got anything else in her life, so she's obsessing about her image and making sure the ageing process doesn't catch up with her," the source said.
A host of acts have been added to the bill since princes William and Harry announced the event and the addition of Kylie will bring more pop glamour to the summer concert.
A source told the Sun: "We're just signing off some details, but it all looks good."
Kylie underwent treatment for breast cancer 18 months ago and has since performed a number of times to conclude her Showgirl tour, which was postponed on its Australian leg after she was diagnosed.
The pop princess has not yet decided whether she will perform or introduce acts at the Diana concert, which now also boasts the signings of Take That and Ricky Gervais, according to the paper.
The Concert for Diana will take place in July 1st, which would have been the princess's 46th birthday.
Prince William said of the concert's acts: "The idea is we wanted to get artists that our mother really loved, and then artists that both Harry and I enjoy, and in the middle with the ballet and Andrew Lloyd Webber - obviously she loved her dancing and her musicals.
"So with that you've got a sort of something different, it's not just any old concert. It's going to be different and it's going to be interesting. If it works it will be brilliant, if it doesn't then we won't be in the country."
Acts so far confirmed for the event include Elton John, Lily Allen, Rod Stewart, Bryan Ferry, Kanye West and the Feeling.
