[Meizicht]

I would think so as well ( as in leave it be if (A) and (B) are happy with each other ) but I also read in a lot of different places that maybe (B) has been blinded into thinking he/she's happy. If that is the case, and (B) is hiding his/her unhappiness, should (A) end the relationship for his/her sake?

I'm taking into consideration what Gallagher said, about (A) not having a choice in what (B) thinks, but at the same time, (B) may not be happy, but appears so in order to make (A) happy.
If the situation was like that, would it be good or bad if (A) insisted on breaking up?
( (A)'s feelings, as the abuser, should be looked at as irrelevant here. )