Amid Gwen Stefani and Blake Shelton‘s faltering romance, her ex Gavin Rossdale is demanding a sit down with the couple!

Gwen, 47, and Blake, 40, are about to pull the plug on their relationship, and sources are revealing to Life & Style exclusively that Gavin, 51, wants to discuss how their breakup will affect his sons with the No Doubt rocker.

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“Gavin is a very concerned parent and wants to be sure Gwen and Blake aren’t arguing in front of the boys,” says the source. “And he has concerns how the boys would handle a breakup.”

Kingston, 10, Zuma, 8, and three-year-old Apollo have gotten very close to the country singer, rocking matching camo and tattoos while on his ranch in Oklahoma and even vacationing as a family at Disneyland last year.

Gavin and Gwen ended their 13-year marriage in August 2015 and by November Gwen had made her relationship with her The Voice co-judge public. Gavin is worried another breakup in less than two years will cause a lot of emotional despair for the boys.

gwen stefani kids with blake splash

“I’m trying to be a really good dad,” Gavin said of his top priority following his divorce with Gwen.

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However, it looks like Gwen is in denial about the impending split from Blake, who was noticeably absent from Kingston and Zuma’s first Communion last month.

“She wants the world to think everything is perfect with Blake,” adds the insider. “But that’s just not the case anymore.”

The source continues, “Gwen and Blake began to argue more. Then she started to realize they’re just too different to spend the rest of their lives together.”

For more exclusive celebrity news, be sure to pick up the latest issue of Life & Style on newsstands now! Meanwhile, look back at Gwen and Blake’s cutest moments in the gallery below!