Who said "I'm in love! I'm in love with the Little Red-Haired Girl!"?

This quote is attributed to Charlie Brown.

I'm in love! I'm in love with the Little Red-Haired Girl! - Charlie Brown

"I'm in love! I'm in love with the Little Red-Haired Girl!"

Charlie Brown Love

"Good grief!"

"I got a rock."

"Rats! I did it again."

"Why is it that everything I do turns into a disaster?"

"I love my wife, but sometimes she drives me crazy."

"Love conquers all obstacles."

"Love is patient, love is kind."

"I'm not stupid, I'm just in love!"