If she calls her husband to bed and he refuses

Somre sisters ask the following question:
We hear the hadeeth that if a man calls his wife to his bed and she refuses, then the angels curse her until morning. The question is, what if the wife calls the husband to bed and he refuses?

Praise be to Allaah.

It is not permissible for a man to forsake his wife and thus harm her, except in the case of nushooz (rebellion) and disobedience. But he is not committing a sin if he does not lie with her without intending to harm her, because the need is his and depends on his desire and he cannot control his desire at will. If he forsakes her, then he is a sinner because there should be no harming or reciprocating harm. And Allaah knows best.