Since she came clean about their romance back in November last year, Jessie has been completely smitten with her US beau and now we know why.
Admitting that some men have been warned off by her 'strong attitude' when it comes to being a woman, the 26-year-old credits boyfriend Luke for being the only one who can handle her.
In an interview with the Daily Star, Jessie explained: "There are some guys who can't handle me because a strong woman can sometimes be scary... Luke is someone who celebrates me as a woman."
Since Jessie and Luke went public with their relationship, the dark-haired beauty has been completely smitten with her new man.
But being a global superstar means Jessie is never in once place for long, and that can be frustrating when she has to leave her other half behind.
Determined to make her relationship with Luke work, Jessie has revealed she will do everything she can to hold onto her current flame.
"I want to make this work and I will," she claimed. "You always work hard for the things you want and it is the same thing with Luke."
Sounds like things are getting pretty serious!
Jessie first let slip she and singer Luke were an item after dedicating her 'Man Crush Monday' post on Instagram to him.
Shortly after, the 'Bang Bang' vocalist gushed about her boyfriend during a TV appearance on Loose Women and she and Luke then went onto make their red carpet debut a few weeks later at the American Music Awards in LA.
Keen to share her romance with her fans too, Jessie has been posting plenty of loved-up snaps on Twitter and Instagram over the last few months - including some very cute photos of herself and Luke while away in Jamaica over New Year.
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