Calvin spoke about Rita during a chat on Ryan Seacrest's radio show On Air on Tuesday (22 April).
Speaking about his music, 30-year-old Calvin said: "I think the majority of people still don't know it's me who sings, which is completely fine. I'm good just being the producer guy."
Being the "producer guy" means Calvin still gets to do "normal stuff and not get any hassle", but when Rita is by his side, "then she attracts quite a lot of attention," he said.
Calvin also revealed that he calls Rita "The Misses", but cleared up any speculation that they've got secretly married! "I think it's like a Scottish thing," he clarified.
'Feel So Close' hitmaker Calvin, who explained that he's constantly working, said he still makes sure to set time aside for Rita.
"Right now, we see each other like four days every two weeks," he said. "We'd probably get sick of each other if we had a whole month [together]."
Rita and Calvin were first linked together in May last year but the pair kept their romance tight-lipped, refusing to comment on their relationship status.
After finally going public about their blossoming romance some weeks later, the pair seemed inseparable after being spotted on dinner dates in Los Angeles.
'Shine Ya Light' singer Rita and Calvin did face split rumours in January, but they showed that they're very much together when they made their red carpet debut at the Grammy Awards just two weeks later.
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