Frank Sinatra once attempted suicide when his wife Ava Gardner left him, according to an explosive new expose. Biographer LEE SERVER claims the late crooner's tempestuous romance with the movie legend was doomed from the start in his new book AVA GARDNER: LOVE IS NOTHING, but Sinatra still had a hard time accepting it was over when she walked out on him. In the tome Server tells US news show Extra, "This drove him crazy, even to the point of attempting suicide." The writer claims he researched the split intensely and discovered from sources that Sinatra considered shooting himself and slashing his wrists.