Yes, that's true in general of counselling. The people who are having trouble dealing with other people and want to change go. The people who are causing problems and don't want to change don't go. People with personality disorders don't see themselves as causing problems and blame others more than they have a desire to change. There are a few exceptions, but that's the trend.
Exactly. Most of us here can relate, as we've lived that life every day with our BP loved ones.