On-again, off-again romances: From Justin Bieber and Hailey Baldwin to Sammi Cheng and Andy Hui

Canadian pop idol Bieber first met actor Stephen Baldwin's daughter Hailey as a teen idol. They got engaged last year months after he broke up with singer Selena Gomez. PHOTO: JUSTIN BIEBER / FACEBOOK
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SINGAPORE - Celebrity couples like Hong Kong singer Nicholas Tse and Chinese pop diva Faye Wong have dominated headlines due to their on-again, off-again and then on-again relationship.

The two, who first began dating in 2000, split after two years together. After being apart for a decade, they got together in 2014.

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