The former Beverly Hills, 90210 star suffered a string of complications during her most recent pregnancy with son Finn Davey, and was back in hospital three weeks after the delivery when her Caesarean scar opened.
And she can't thank MCDermott enough for being there for her and their kids at a time when Spelling wasn't sure if she'd make it through or not.
She tells Life & Style magazine, "Dean is my rock. I had dark days when I would say, 'Am I going to be Ok?' Dean had to answer those tough questions, like, 'Is Mama ever coming back?'
"I appreciated him on such a new level after that. It just reconfirmed that Dean is my soul mate; he's the glue in this family. We are all such a bonded group now. It changed all of us. It really did."