is firing back at ex-wife Meg Ryan for recently dishing about their failed marriage and his alleged infidelity. Ryan recently told InStyle that "Dennis was not faithful to me for a long time, and that was very painful." She explained to Diane Sawyer that she just wanted to "fill in the gaps for people." But Quaid tells New York's Daily News , "It was eight years ago, and I find it unbelievable that Meg continues publicly to rehash and rewrite the story of our relationship. "Also, ...