Meghan Markle’s cousin has admitted he’s “happy” for the Duchess of Sussex, despite not seeing her for nearly 20 years. Shawn Johnson, 43, lives in Merced, California, a five-hour drive away from Montecito where the Duke and Duchess of Sussex reside. Johnson opened up about his childhood with his cousin Meghan, who is one year his junior. He said: “She was always really sweet. She was kind and she always had a star quality about her. “She was infectious with just the way she was and really mature for her age. She was always really looking after us and making sure that we’re all doing fine.” Jo…