Aaron Phypers tells PEOPLE that Denise Richards was allegedly not involved in their animals' lives after police responded to his home when Richards showed up attempting to pick up one of their dogs. She also alleged that he put one of their dogs down without telling her,

Aaron Phypers has claimed Denise Richards had shown no interest in their pets for the last two years, despite her apparent fury after one of their dogs was put to sleep.

Richards accused Phypers of having their dog put down after her impromptu pop up at their Calabasas, Calif., home.