Amy has been married with Greg. Although it was a sincere relationship she knew that she lying to herself that she was happy. In the beginning, it was a just coincidence that brings her and her husband to be good partners in the past. She was lost of sight and completely jealous when she knew that someone she longing for a long time and adore was married to someone else, yeah she knew it would never happen to her because he is her boss. The ultimate high-quality singles criteria for future partners.
Since Amy was heartbreak because of that silly incident she committed that she wants to follow him being a married person, even with someone that she completely not loved, and maybe look into him because something else likes his kindness to her, his patients, his smart brains or because he has some things that in common similar to her bosses, like same nations and skin color or appearances, but with no heart involved in. She admits it was a huge stupidity that she made her life. But yeah it has been happening to her. Amy married someone that loves her so much, cares about her much. She used to see that as an alibi foundation of the relationship.