Jonathan was pretty under-utilized on the show, and in fanfic I've found him difficult to write for... you know, when some people are upset, they go get drunk or get into fights, or something dramatic ... Jonathan just goes out and plows wink But he's a cool guy all the same.

PJ

"You told me you weren't like other men," she said, shaking her head at him when the storm of laughter had passed.
He grinned at her - a goofy, Clark Kent kind of a grin. "I have a gift for understatement."
"You can say that again," she told him.
"I have a...."
"Oh, shut up."

--Stardust, Caroline K