The 30-year-old singer, who split from her DJ partner after three years together last summer, is reportedly giving their romance another shot after meeting up with him in Ibiza, reported Daily Star online.
"Sarah and Tom have been meeting up in Ibiza and talking about their relationship. They never stopped loving each other and have continued to support each other since the break-up," a souce said.
"Tommy now wants Sarah back. He thinks no other woman comes close to her. She headed out to Ibiza with an enormous amount of luggage so is obviously planning on spending a lot of time there in the coming months - which will mean more time with Tom," it added.
Harding ended up in rehab last year for alcohol issues following the end of her relationship, and her friends are hopeful they will be able to make their romance last this time.
"Friends are hoping they use the time to overcome their issues and give their love a second chance," it added.
Later this year, Harding is due to get back with her Girls Aloud bandmates Cheryl Cole, Nadine Coyle, Kimberley Walsh and Nicola Roberts to celebrate 10 years in the pop industry.
