I don't know anything about his situation, but I will say one of the lamest things ever when breaking up is to say it's not you, it's me heh. I mean that's probably something everyone hears face to face and I get it, nobody wants to hurt someones feelings to give their "real" reason when what's done is done, but to see it articulated on a blog post as some kind transparent confession is a little surprising.
Like unless maybe you were going thru some massive event that was very clearly damaging to your relationship (drugs, abuse, etc), the optics of finding yourself to end a seemingly great relationship after selling a company for mega millions isn't going to jive with a lot of people. But the again I guess that's the point of the post, there is no point or purpose. Alright, taking off my judgement hat now.