The SexyBack singer is rumoured to have split from the stunning actress and now his grandmother has revealed he had no intention of marrying her.
Sadie Bomar told Closer magazine: "Jessica was keen to marry, but Justin isn't ready. He's busy writing new material and he works hard to be successful - he's really focused on that.
"As far as we're concerned, he's always been single. The girlfriends come and go, but we believe nothing has ever been serious. Justin does his own thing and he isn't ready to marry just yet."
It was recently reported that Justin and Jessica are "re-evaluating" their relationship. The couple, who have been dating for around two-and-a-half years, are believed to be going through a rocky patch, but friends denied claims they have already split.
A source said: "Things have been a bit up in the air recently. They've been spending more time apart - more time with each of their friends, and they've been re-evaluating their relationship."