Emily Brown grew sullen when she heard her words.
She knew that her son was loyal to love who wouldn't let go of the one he loved.
Because of this, she absolutely wouldn't give Wyonna the chance to see Shane and confess.
Another reason was that she wanted to hide the truth that the person who first cheated in marriage was her, not WilGeorge Muller. She wanted to maintain her image of a good mother.
So Emily looked at Wyonna and spoke with hesitation, "Wyonna, don't you understand what I mean? I do not allow you to be with Shane not only because of hatred, but also because he is the son of Quentin Green. In other words, you two are cousins. Are you sure that you want to be with your cousin?"
In fact, Shane was not Quentin's son. She just made up this lie to make Wyonna back down.
She did have a child with Quentin, but she aborted it. Shane was WilGeorge's son.
Hearing this, Wyonna felt she was hollowed out and completely broke down.