Mahri's third husband was William Merritt Weaver Jr., a wealthy financier and operator of tungsten mines. They married in 1958 and had a daughter Wendy Mari. They divorced in 1972. At the time, syndicated newspaper columnist Suzy wrote that she was "divorcing her third husband (and her third millionaire)". Mahri received press coverage for her romantic relationships and marriages to wealthy men. She was credited with inventing the saying, "Marriage is a question of give and take. You give. I take." On January 2, 1958, she married her third millionaire, William Weaver. That year, it was revealed that Selene was a passionate deep sea fisher, dabbled in painting for a time, was a good piano player (Chopin being her favorite), that she played bridge frequently, that she was an arm chair golfer and a frustrated interior designer. Her favorite piece of jewelry was her husbands Phi Beta Kappa Key that she wore on a bracelet. The couple moved to New York not long after they wed. Selene and William divorced in 1972. She kept his surname and didn’t remarry.