Did Barney ever marry Thelma Lou on the Andy Griffith show?

Barney's mother appeared in at least one episode. Season 1, Episode 2. "The Manhunt" when state police come to Mayberry and set up roadblocks to capture an escaped criminal. Andy and Barney set up a roadblock on the dirt road by the lake. Barney frisks the mayor and his own mother, among others.