He must say what needs to be said, let her know.
He doesn't know how Lissy will react or if she could forgive him. But if he doesn't say it now, perhaps... he may never have the chance to say it.
Once he had spoken up, whether or not she forgives him is up to Lissy.
If he doesn't express himself, he'll never have a chance to be forgiven by Lissy.
John Fame is lost in thought, the phone on the side rang.
He picked it up, answered, and put it to his ear: "Hello, grandpa."
Jim Fame's voice was filled with an undisguised excitement: "Lissy's test results are out. She's really pregnant, right?"
"The doctor has already informed you directly, why are you still asking me, Grandpa?"
"I... I just can't quite believe it."
"Yes, Grandpa, your most cared for daughter-in-law is pregnant, six weeks."
Jim Fame laughed heartily: "Good, good! Good! I'm telling you, John Fame, you must take good care of Lissy. If there's any mistake, I won't let you off."