Dannii Minogue, Kris Smith relationship on the rocks?

It has emerged that Dannii Minogue and Kris Smith, who have a one-year-old baby boy, have sparked rumours of splitting after airing their relationship troubles on Twitter.

"Never chase love. If it isn't given freely by another person, it's not worth having," Minogue had tweeted.

"Forgiving someone does not mean forgetting what they did. It simply means letting go of the hurt," she added.

And Smith replied: "You don't know what you've got till it's gone."

The couple is said to be feeling the strain of raising their baby and juggling their careers in Britain and Australia.

Although the tweets have been deleted, friends of the couple have said that Minogue is "not happy about having to choose between work and family, and they have been arguing about this recently".

"Kris is not happy about Dannii's heavy workload, and wants her to spend more time with him and baby Ethan, and has put his foot down," News.com.au quoted a source telling the UK tabloid News of the World.

"For the past few months it feels like when one is in Australia the other is in the UK," the source added.