Jack Wagner Heather Locklear Engagement -- Torpedoed By Wedding Plans

Jack Wagner's engagement to Heather Lockear blew up because of the pressures of planning their wedding.

Jack tells TMZ ... the wedding plans became so all-consuming, they had little or no time to spend with their respective kids.

And there was another complication. Jack says he and Heather decided a blended family was not a good idea, because their kids were too young and it would be too disruptive. So on top of the wedding plans, Jack had to spend time alone with his 2 sons, and Heather spent her remaining time with daughter Ava.