The 28-year-old singer explained how the Nickelback star proposed four weeks after their romance started and their romance was centered around ''music''.
Speaking to the New York Post, she said: ''We met in the studio. We started dating July 1 - Canada Day. He proposed in the studio a month later after we were dating
''We bonded through work, music and song writing. We were buddies and it blossomed naturally into a relationship.''
With such a high-profile love life, the 'Here's to Never Growing Up' hitmaker revealed she tries to avoid getting ''too caught up'' in life as a star.
She added: ''It's very rare that I meet people in the industry that are down to earth.
''Normal people [can] get really caught up in their celebrity and who they are as a star. For me I've always made sure to turn it on when I need it to turn on and turn it off when I need it to turn off.
''I am a normal human being. I like to be home and with my family. I spent 10 years living in Los Angeles and I moved away from LA now to make sure I don't get too caught up.''