The Loose Women star explained that her long-time romance with Jessup was tested after she focused more on her role in The Bill than her home life.
"The work ethic at The Bill was ridiculous," she told The Mirror.
"Show first, everything else second. When I had the second miscarriage I realised I had my priorities wrong. I'd lost the plot. I had lost sight of what was important.
"I know Paul felt shut out too. He told me it was destructive, and that my reaction was unhealthy. He said I needed to take time out to think about what I wanted to do.
"Our relationship was rocky. We needed to regroup and I realised then it was time for me to jack in the job and come home."
Maxwell added that leaving The Bill and joining Loose Women helped save their relationship and allowed her to spend more time with daughter Beau.
"I'm not as ambitious as I was," she said. "I like acting, but I love doing Loose Women, I've got lots of different hats on.
"You've got to make it work. I can't just pack a bag and bugger off. I've got responsibilities. I love the fact my daughter now takes me for granted. I'm like a normal mum."
Lisa Maxwell became engaged to Paul Jessup earlier this year after 15 years together.