According to him at the time he led a “permissive, fast, and reckless lifestyle”.
A man can get it from a woman it’s just not as likely. He seems like the kind of guy who would use hookers. Drugs is also possible I guess, I don’t know if they drug tested boxers back then.
He was an arrogant sot for a while and it all went to his head. It ended relatively quickly and abruptly but it was as hard a fall from fame as one is likely to see.