Oops, I thought Maca's gf sent the text, not sure why I interpreted it that way. So, okay, Maca did, hmm. You (and we) know he has had problems with your relationship with GG all these years, and it has always puzzled me especially given what a stand-up guy and treasured member of the family GG has been for so long. This seems like a cycle Maca insists on perpetuating. Every time you think you're making progress and moving forward - Maca has to take two steps back and freak out. At some point, he has to stop indulging in that shit. I don't think there's anything you can do except for being your usual no-bullshit ethical self. You've got enough years' experience to rely on your intuition and common sense where he is concerned. But if Maca is to get anywhere, like out of the hole he creates for himself time and time again, he needs to pull himself out. Not drag you down with him.
The world opens up... when you do.
Oh, oh, can't you see? Love is the drug for me. ~Bryan Ferry
"Love is that condition in which another person's happiness is essential to your own." ~Robert Heinlein