The app Hornet, which caters to the gay male community, has seen a 30-percent increase in social feed engagement since social distancing measures began in mid-March, according to CEO Christof Wittig. And the dating app Tinder reported that it saw more engagement on March 29 than on any other day in its history, with more than 3 billion users swiping to connect with people, according to an April 1 press release. In 2020, online dating revenue in the U.S. amounted to 602 million U.S. dollars, and it is projected to reach 755 billion U.S. dollars by 2024. The number of users is also expected to see an annual increase, with…