added: 23 Oct 2013 // by: Music-News.com Newsdesk
Katy Perry and John Mayer reportedly 'realise they must be together' forever.
The musicians have had an on-off relationship since last year, but the pair seem happier than ever since reconciling in July.
It is now rumoured that their engagement is imminent.
"Everyone knows it's just a question of when John will propose," a source tells Us Weekly magazine.
"[Katy and John] realise they must be together. They Skype and text all day. John always checks in before bed!"
John took Katy to his brother Carl's wedding last week at New York's Mamaroneck Beach and Yacht Club.
John was best man and superstar Katy was reportedly very discreet throughout the nuptials.
'They were very polite and down-to-earth and didn't want to take away from the bride and groom's day,' a source told Page Six. 'Katy stayed behind the scenes and politely turned down photos. It was a beautiful ceremony on the water.'
During John and Katy's three-month separation earlier this year, she admitted she was still in love with the musician.
Calling him a 'tortured soul,' she said she was attracted to 'broken birds.'
"No, I was madly in love with him," she told the US edition of Vogue. "I still am madly in love with him. All I can say about the relationship is that he's got a beautiful mind. Beautiful mind, tortured soul. I do have to figure out why I'm attracted to these broken birds."
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