I'm not
sure whether he did refer to
ayu as psycho, and I'm open to accepting the possibility that "loved and lost someone" and "living with a psycho" refers to two different situations/persons. I think he just relates to the first part of the sentence (loved and lost); it's better for him to have had loved and lost ayu, rather than living with a psycho his whole life.
However
It
is strange to me that he said "haha funny". If he did relate to the sentence, I don't think he would write "haha funny". Doing so instead seems like he doesn't believe in it
Regardless of whether I like or dislike him (which is neither), I find him posting this rather strange. Maybe this is just another Facebook faux-pas.