What about Magda, though?
Yes George Sanders was married to Zsa Zsa first and then about 15 years later he was married to Magda for about 18 months he was still married to her when he committed suicide by swallowing five bottles of Nembutal, the Barbiturate, his suicide note was:
"Dear World, I am leaving because I am bored. I feel I have lived long enough. I am leaving you with your worries in this sweet cesspool. Good luck."
George Sanders in the 1930s told David Niven that he would commit suicide when he got to 65 years in age, and he did at the age of 65 in 1973.
I LOVE Kenneth Anger's two Hollywood Babylon books, in the one with the fat Elizabeth Taylor on the cover (the other has the MEGA Booby, but VERY VERY High IQ Jayne Mansfield on the cover) there is an entire chapter on The Art of Self Murder, all those Old Hollywood Suicides going back to the 1920s, some of them very spectacular eg. Peg Entwistle who in 1932 at the age of 24 years in age climbed to the top of the H when the sign used to read Hollywoodland and threw herself off it.
Peg Entwistle - Wikipedia