I don't know who he is and don't care, but this thread is really disturbing.
For an awful lot of people, it is not simple to know you're gay. They might not know. They might convince themselves they're bi. They might convince themselves they're straight.
Of course, it's perfectly possible this one individual is simply deeply unpleasant, always knew, deliberately lied to his wife, and shagged around with gleeful abandon. In which case, yes, poor wife.
But it's homophobic bigotry to insist he 'must' be bi, or he must have 'lied' or had a 'sham' of a marriage.
It's also incredibly naive to say he could have come out at any time, and he wouldn't have been judged. We've no idea about that. And even if the wider public would have accepted him, for all we know, he might not have felt able to accept himself.
There are plenty of people, in 2020, who know that if they come out a family member they love will no longer speak to them, or they'll risk physical violence, or they'll feel disgusted with themselves.
It's not trivial, and IMO this thread is perpetuating a lot of nasty myths about sexuality.