First of all, that "story" about the Brazilian sex doctor is such tabloid nonsense that it isn't even worth commenting on.
I wouldn't pass judgement on Seagal leaving his wife for a 20 year old girl because none of us know the full set of circumstances behind it. How do we know his wife didn't do something to cause it? I'm not saying she deserved it or anything, but there's all kinds of possible reasons for him going with another woman. It might be his fault, it might be her fault, it might be down to both of them. Relationships are always complex. And it's the tabloid gossip merchants who really go out of their way to paint a certain picture of Seagal when they say he "dumped" his wife for a younger woman, to imply certain negative things about his character. You have to understand the nature of the people who write these things.
In his career, I imagine there are far more people who have gotten rubbed the wrong way by Seagal than there are people who like him. I'll be the first to admit that he's not really a "people person", in interviews he is often closed and standoffish, and he doesn't always play the nice kiss-kiss game as a movie star is normally expected to do. In Hollywood, that can be very harmful to your image. People who take a dislike to you can start making life very difficult. And anyway, people always enjoy making up stories about celebrities, and making assumptions about their private life without the full facts, just so they can have something juicy to gossip about. They have a perverted, ghoulish fascination with sordid details that 9 times out of 10 have been made up by the journo. I agree that there is often "no smoke without fire" but to believe some of these outlandish stories I think one would have to be very gullible indeed.
And to bring back my earlier point, Seagal is a 7th dan Aikido master. I have seen the way that 7th dan martial artists conduct themselves, and they DO NOT go around behaving like these articles would have you believe.
Just remember, the pen is mightier than the sword (or in this case, the Aikido arm snap). And that's all I have to say about that.
I'll finish with the Sensei's own words:
"People call me all kinds of things, including four letter words. I respond to all of them. When I walk into a room some people see a dog, some people see a cow; I am all of what they see, it is their perception. But I do believe that buddhanature is in all of us, even in a mangy dog lying in the gutter with fleas. That dog is Buddha to me. People can call me anything they want, I respond to anything."