Not a thing! \o/ He just is noted to have Irish, English and German roots and they've been in America a whiiiile, Texas primarily. His father and mother can have as many siblings as you like.
Something about being better as a friends than husband and wife. It was never really defined heavily with this version minus that he always had a good time with her. I know he briefly mentioned her here but, like I said, details can be tweaked since it was a single mention.