Sometimes trash tv is compulsive viewing!
I think back in in the dim and distant past this kind of programme did start out as genuine discussions, but now they are just wheeled out for the 'entertainment' of the watching public!
I normally do not bother to watch, but if I happen to turn on the telly and one of these is on, then I can get caught up in the problem!
To try to give a serious answer to your question surreyguy, women who are genuinely in this predicament, are so brainwashed by the guy into believeing that no one else will want them, that they are frightened to leave. In fact, they get comfortable with the situation they are in, believe it or not, as they have not known anything else for such a long time. Or they have been mentally or physically abused as kids and go on to find another abusive relationship as they have been conditioned to accept that this is the norm.
Sorry, I will get off my amateur psychology box now!
Cheers Sue