My friends husband cheated on her and left her for ow. He then would come back multiple times to the wife, full of false promises then a week or two later would go quiet, then pulled the “iM confused, don’t know what I want, need to be alone bla bla bla” and then a few weeks later be back with ow. This went on a long time (friend clearly has low self esteem and boundary issues and as far as friend is aware, the ow wasn’t aware of each time he went back to wife).
My question is, other than being a narcissist, why does he do it? How can he not know what he feels and also that he is treating both women deploringly ?