Mark is your husband who remarried, two made Alea, your true friend, his second wife. He did that because you couldn't give birth to children.

*short story, Alea managed to give Mark a child, now she is 7 months pregnant, both of them are in the living room and you can only see it from the dining table. You hear the conversation while digging: "I can't wait for our child to be born, darling" Mark said while stroking Alea's distended belly