I've been thinking about this a lot since the last major investigative effort on this subject. I wonder if, sometimes, there isn't a total disconnect on "what's going on" between the parties.
I'm not real aware of doing something that I think of as "isolating". But, there are times when it's really hard to make myself do things like return phone calls because all the "demands" that people seem to make just seem like too much. There are times when I'll walk out on an argument, but that's because I can tell that I'm getting to the point where the choices are "hurt someone" or "walk away". I stay "away" until I'm pretty sure I can deal with the situation better.
Some of the stuff that I've read from "supporters", especially the ones that wander in during a perceived crisis in their relationship and then wander right back out, seem like pretty extreme expectations to me. Like "I'm upset because my sufferer won't respond to my repeated texts." (Well, maybe if you'd back off a little and quit pushing they'd get to where they could. If my ex had been inclined to follow me outside and continue the argument, I might be in jail!) Do people REALLY expect their SO's to be in daily or constant contact? I mean, if you're living together that's one thing. If you're not, do people REALLY expect to be texting all day long? Do they really expect you to spill your guts about what's bothering you when you're not quite sure yourself? And it's some kind of insult if you don't?
OK, stopping the rant before I really get going. Maybe we need more decision about what are reasonable and unreasonable expectations.
One other thought. Some of these relationships that end, I wonder if a percentage of them legitimately needed to end and then it gets blamed on PTSD when it was, in fact, a bad relationship, PTSD or not. Not necessarily that the people were bad, but that it was a bad combination. And maybe the combination occurred in the first place because of mental health issues, but I wonder if some of these relationships just need to end anyway but people blame it on PTSD because that's less painful than accepting that somethings just aren't meant to work out the way we think we want them too.