The couple has two children together and are said to be "distraught" about the split.
They have already made arrangements, leaving Charlotte with their home in Wales, worth $1.2 million pounds, while Gavin plans to find a home nearby so he can visit their children.
The source says, "it is an incredibly sad state of affairs. Both Gavin and Charlotte are deeply distraught. But after a lot of soul-searching, they realized this is the best course of action for them and the children. It was a mutual decision."
It's good to know that at least some celebrity couples can keep it civil for the kids!
[Image via WENN.]