This statement is extremely unclear and confusing. 'Cum' is a vulgar term, and the idea of equating it with'stories' in this context makes no logical sense. It could potentially be a very misconstrued or wrongly expressed thought in a relationship, but without more context, it's hard to give a more precise meaning.
If we assume this is some sort of very strange and inappropriate thought within a relationship, perhaps it indicates a lack of proper communication or a misunderstanding of normal sexual and relationship concepts. However, this is a very abnormal and difficult - to - understand statement. It might also be a sign of some sort of mental confusion or inappropriate fixation within the husband's mind.