Rita Wilson got candid about the devastating loss of her mother, Dorothy Wilson, and how her death fundamentally changed the actress’s relationship with her four children.  The star’s mother died in 2014 following a battle with Alzheimer’s disease, leaving Rita with thousands of unanswered questions and a well of heartbreak.  “Even though she was my best friend, and I thought I had asked her everything that I could possibly want to ask her, still there’s things I wish I had asked her, that I wish I had known,” she told People.  © FilmMagicRita’s mother Dorothy passed away in 2014 “You never forget when you lose your mom,” she added. Rita, who is also a celebrated singer-songwriter, recently reflected on Dorothy’s passing in an emotional song titled “Your Mother“. “I know it’s hard for you to see/ There was someone else she used to be/ If you listen you will learn/ Every time the seasons turn/ That you’ll never have another/ Your mother,” the lyrics read. The mother of four added that she hoped people would hear the song and “ask their moms the questions while they’re still alive.“ © Getty ImagesShe wrote an emotional song about losing …