Kelsey Grammer Camille Thought She Married Frasier

10/18/2011 4:40 AM PDT

Kelsey Grammer: Camille Thought She Married Frasier

Kelsey Grammer says he thinks Camille Grammer only married him "because I was Frasier" ... and claims she regretted the marriage just DAYS after they tied the knot.

Grammer appeared on "Piers Morgan Tonight" yesterday ... and said, "[Frasier] had this great wonderful life ... he was stylish ... and just a little gay ... Kelsey Grammer is a different story."

But Grammer's smile disappeared when Piers asked about the most hurtful thing Camille has said about him ... and the actor replied, "She once said that I didn't want  my daughter ... that pissed me off."

Moments later, Kelsey changed his mind ... saying, "The thing that she said that hurt me the most ... that hurt Kayte [his new wife] and me ... is that thing about the child we lost ... something about it being karma ... it's just disgusting."