In 15 years of marriage, Tori Spelling and Dean McDermott have weathered ups and downs, but multiple sources tell PEOPLE that they’ve hit a particularlyrocky road.“They’ve grown apart,” says a source of the couple, who are parents of five children: sonsLiam Aaron, 14,Finn Davey, 9, andBeau Dean, 4, plus daughtersStella Doreen, 13, andHattie Margaret, 10.“They have issues that are hard to remedy. And they don’t have the same relationship they once did,” the source says of Spelling and McDermott.In recent months, McDermott, 55, has been noticeably absent in Spelling’s social media posts and was not included in aphotoof family Christmas stockings or in the family’s Christmas card.“Things have been chilly between them,” says an insider. “Tori is trying to figure out what to do next. And she’s always focused on her kids.“Amy Sussman/Getty ImagesSources say that one major sticking point is McDermott’s 2013 affair, the fallout of which was covered in the couple’s reality series,True Tori.“Tori still has major trust issues,” says the insider. “Part of their relationship was never fully repaired after he was unfaithful.“Tori Spelling.Rachel Luna/GettyNow, time will tell what’s ahead for McDermott and Spelling.“Tori doesn’t want to break up her family,” says the source. “But marriages with five children need to have a lot of trust.”

In 15 years of marriage, Tori Spelling and Dean McDermott have weathered ups and downs, but multiple sources tell PEOPLE that they’ve hit a particularlyrocky road.

“They’ve grown apart,” says a source of the couple, who are parents of five children: sonsLiam Aaron, 14,Finn Davey, 9, andBeau Dean, 4, plus daughtersStella Doreen, 13, andHattie Margaret, 10.

“They have issues that are hard to remedy. And they don’t have the same relationship they once did,” the source says of Spelling and McDermott.

In recent months, McDermott, 55, has been noticeably absent in Spelling’s social media posts and was not included in aphotoof family Christmas stockings or in the family’s Christmas card.

“Things have been chilly between them,” says an insider. “Tori is trying to figure out what to do next. And she’s always focused on her kids.”

Amy Sussman/Getty Images

Tori Spelling and Dean McDermott

Sources say that one major sticking point is McDermott’s 2013 affair, the fallout of which was covered in the couple’s reality series,True Tori.

“Tori still has major trust issues,” says the insider. “Part of their relationship was never fully repaired after he was unfaithful.”

Tori Spelling.Rachel Luna/Getty

tori spelling

Now, time will tell what’s ahead for McDermott and Spelling.

“Tori doesn’t want to break up her family,” says the source. “But marriages with five children need to have a lot of trust.”

source: people.com