I might be wrong, but that just doesn't sound like a
PTSD reaction, it sounds like someone being a jerk. Now, if his ex-wife was the source of his PTSD and a certain behavior is a trigger, I can see where, maybe, its hard to modulate your response. (from his point of view.) But exactly what was said there sounds like a pretty classic abusive, manipulative jerk. (Everything someone with PTSD does isn't ALWAYS a PTSD thing, after all.)
He gets triggered by...well, just about anything that involves what he considers "controlling" behavior. That lovely comment came after my being worried about his eating too many cough drops and his even WORSE response, for which that was the so-called apology. It was more an example of his vilification of me, and his unwillingness to really own his behavior. His ex-wife wasn't a source of his PTSD (childhood trauma is), but he saw her as "too controlling," which is an issue for him. The conversation also compared me to his mother, who WAS a source of his trauma.
He considers himself to be, at the base of things, a "loner asshole." He believes that the cut-off, walled up, untrusting person he is when he's most triggered is who he needs to be to survive. Never mind that he is perfectly capable of being a goofy, sweet, nice, loving guy. He doesn't consider his behavior when he's lashing out to be abusive, and turns it around so that whatever triggered him must be the truly abusive behavior.
Basically, he has researched enough about PTSD to think he has his "under control" (even though he's not had treatment for it), and that if he's being triggered it must mean that the person who's doing it is the problem, and not the PTSD. BUT, the rational side of him knows that's not true, and eventually, being ashamed of his behavior starts to come into play.
He truly gets...all I can call it is confused or delusional...when he's triggered. His arguments start to not even make sense, and he starts to project, and even say I did or said something that I clearly didn't (IE, his mom or another abuser, or even he, himself said or did). I think it probably is a bit of flashback in there, but without having a professional actually treat anything, I don't know.
ANYway, yes, classic abusive behavior, followed by the classic abusers response, but almost always in the proximity of some trigger. I definitely realize that not everything is connected to PTSD, but our whole relationship, in retrospect, has been influenced by it, just because of the nature of his trauma. And my finally realizing that even though, in the heat of it, he may not even realize what he's doing, the very fact that he won't get help to figure out how NOT to be abusive, is the problem in itself, is part of what's making me finally tell him that actions DO matter, and abuse is abuse (and be willing to walk away when he's pushing).