Hong Kong - Have actress Zhang Ziyi and fiance Wang Feng wed or even split up?

Monday was the three-month deadline for them to get married under Hong Kong marriage laws and it came and went without news of their union.

The two had filed a notice to marry in Hong Kong on March 29 and it is now void if they did not marry. They were not spotted at the marriage registry on Monday, which was also rocker Wang's 44th birthday.

Zhang, a Hong Kong resident, has also not been seen in recent days, says Ming Pao Daily News.

Her beau, meanwhile, has been performing in China, where he celebrated his birthday on Monday with a cake rolled out on stage.

But they could already have married. An eagle-eyed netizen said Wang has been seen sporting a ring on his ring finger in photos posted on his WeChat account since May 17, NetEase reported.

They could have married anytime after May 9, the last time he was photographed ringless, Sina.com reported. That May 9 picture, posted on May 11, was taken at a Shenzhen concert.

While there is also speculation of a split, that appeared unlikely as Wang had mentioned Zhang at his concert last Saturday.

When he sang You're My Beloved Girl, the crowd shouted Zhang's name. He replied: "Ziyi told me before the show to thank you if any of you calls her name."

He proposed to Zhang, 36, at her birthday party in February.