Michelle Williams & Spike Jonze back-on?

Michelle Williams is reportedly set to rekindle her romance with film director Spike Jonze.

The actress who split from Spike around 18 months ago is taking things slowly with the LCD Soundsystem star after she hung out with the band in New York earlier this month, reports Britain’s Daily Mail newspaper.

“Spike realises he made a huge mistake leaving Michelle and he desperately wants her back,” a source said.

“They are making a tentative go of their relationship again but Michelle is nervous. Spike broke her heart the first time around.

“He’s promised that he’s a changed man who is ready for commitment, but Michelle has told him to prove himself before she can trust him again.”