There are guys, my stbx for example, that could not tell you why he is withholding because he cannot understand that first, there is a problem, and second, what was the first question? Even if you try to discuss it you will get utter silence, a dazed look on the face, or, my absolute favorite, " I dunno." LL may never get a real answer no matter how hard she tries to help him articulate what is going on with him.