"It is possible that individuals who met their spouse online may be different in personality, motivation to form a long-term marital relationship, or some other factor." But not all experts believe that online dating translates into instant bliss.
Eli Finkel, a professor of social psychology at Northwestern University, led an extensive review of the science published about online dating last year.
Madison Keys will remember year 2017 for reaching her first Grand Slam final at the US Open, but also for her flourishing love life.
He told AFP he agreed with the proportions found in the PNAS study.
His research showed about 35 percent of relationships now start online.
The lowest satisfaction rates were reported by people who met through family, work, bars/clubs or blind dates.
"These data suggest that the Internet may be altering the dynamics and outcomes of marriage itself," said Cacioppo.
While neither of them have made an official comment about their relationship, both have tweeted what could be a hint.