“To be its king, one must befriend its cats,” wrote Goodnough next to the sweet Instagram photo Valerie Bertinelli’s boyfriend, Mike Goodnough, has the approval of one very important person in her life—her cat, Batman! On Friday, April 26, Goodnough shared an Instagram photo of the feline sleeping gently inside his arms while relaxing in bed together. “‘To inhabit a land, one must …