Why did Pam dawber break up with male model Phil coccioletti?

Pam Dawber and Phil Coccioletti's relationship ended primarily due to the pressures of their respective careers and the demands of the entertainment industry. The couple faced challenges with balancing their personal lives amid their professional commitments, which ultimately led to their breakup. Additionally, Dawber's rising fame from her role in "Mork & Mindy" may have contributed to the strain on their relationship.