United Kingdom, July 13 -- Brian Austin Green learned to build his relationships around friendship instead of physical attraction after splitting from Megan Fox.

The 52-year-old actor - who has Kassius, 24, with Vanessa Marcil, Noah, 13, Bodhi, 12,and Journey, nine, with Megan, and Zane, four, with partner Sharna Burgess - admitted he "didn't expect" his 15-year union with the Jennifer's Body star to come to an end but he turned to therapy to help him figure out his bad habits in his romances in the hope of forging a brighter future.

Speaking on the I Do, Part 2 podcast, he said: "Until Sharna [Burgess], my ex and I were together for almost 15 years. We were married for almost 10 years and I led with physical attraction.

"First, I'd be...