Kelly Rowland ''almost'' walked away from marriage because she was ''scared'' about committing herself to one person.

The 37-year-old singer has admitted she was ''nervous'' about giving her full commitment to Tim Weatherspoon - with whom she has three-year-old son Titan - at the start of their relationship, but she soon learn to embrace it.

In an interview with Vogue Australia, Kelly - who tied the knot with Tim in 2014 - spilled: ''At the beginning, I was scared of the idea of loving one person. I was nervous about being with one person for the rest of my life.''

The 'Stole' hitmaker blames her string of bad relationships on her past outlook, but her fears went away when Tim suggested they go on a ''break'', because she knew from his response they were meant to be together.

Recalling their conversation, she continued: ''I'd had the worst relationships and I was so scared and said: 'How about we take a break from dating?' and he said: 'What if we took a break from dating and God sent you a guy and that guy was me?' And I was like click! I hung up the phone.

''I was scared, because I knew he was my husband in that moment. And I almost ran away from that, but I just embraced it.''

The Destiny's Child star wouldn't be without her spouse as he is her ''rock'' and she admires him, despite him being a ''freak'' and an ''a**hole'' from time to time.

Kelly admitted: ''Marriage is awesome, it has its ups and downs, like anything in life, but it's incredible.

''My husband is my rock, my best friend.

''He believes when I don't, believes that anything can work and that anything is possible in such a positive light.

''I think he's a freak sometimes, no-one can see things like that, but he's a realist and he's positive and he's an a*sh*le, but I love him for everything he does, like in the cutest way of an a**h*le.''