Only improperly catechized people know what you claim. Others will know God is slow to anger, quick to bless. That the idealized situation you present is rarely the reality.
Love is patint, Love is kind, Love is not puffed up. This is what good catechesis teaches. The logical strictures you describe should always be presented in the context of the love and mercy of God. That doesnt happen if love is "beside the point." A God who will not bless the love you acknowledge is different from the God who gives grace abundantly, who knows where sin abounds, grace abounds still more.
Adultery is a grave matter, but to assume adultery is present when you dont know the particulars of the persons is to misunderstand mortal sin.