Franz Kafka was loose

Apparently Franz Kafka was loose. The man had six girlfriends, four of which he was engaged to, and then there was whatever he had going on with Oskar Pollak. One of the girls he was engaged to, Dora Diamant, was a freaking ACTRESS! And yet he still never married despite having been engaged four times. And there was an article on Medium.com that said “He visits sanatoriums and looks at naked men describing them eloquently. In his diary, he also accepts having sexual feelings for his sister”, but I haven’t found much information on those things anywhere else, so I can’t say for sure how true that is, but still, what a freak.