“Justin Bieber needs to stop his partying ways, clean up his act and stay away from the scene,” The Millionaire Matchmaker Patti Stanger tells RumorFix exclusively.

Selena Gomez reportedly broke up with the teen idol because of “trust issues,” and he reportedly is trying to win her back.

Patti says she knows what he needs to do:

“He needs to stay away from the scene. When he gets off the stage he needs to be clean like Madonna.”

The Millionaire Matchmaker, whose new season launches in January, says, “Selena is grown up. She wants a man and not a child anymore. She’s on the cover of Glamour. She’s on the rise. She’s not going to be caught up by his childish ways!”

Justin is 18 and Selena is 20. “Think about it. He can’t drink,” she says. ” By the time he’s 21 and she’s 23, it won’t matter, but now he needs to grow up emotionally.”