Angela didn't expect she'd feel lighter after having that conversation with Gael in her room just now. He didn't tell her the exact plan on how the De Lucas would handle their situation, and she didn't want to know because knowing what might go down would be tougher on her part.
Despite Gael telling her that he liked her and wanted to be with her, the fact of the matter was that the marriage arrangement was an order given by the union which held all the Italian-American crime families together. Going against it would mean going against the union. And she would technically be the mistress if she stayed. Were they even still together to be called that? What's difficult was that they never labeled their relationship, to begin with, yet all of this was hurtful as if they were official. 'Can I ever call you mine?' she thought.