It's not that she's badmouthing her ex; there are two possibilities: 1) she hates abusive men who destroy people's trust, including hers, or 2) her "ex" is a Mexican criminal involved in drug trafficking who seriously mistreated her, kidnapped her and had her committed to a mental health facility (trying to break her spirit) and forced her to take medication that made her gain weight. As for the surgery, well, it's a standard procedure when a replacement or necessary medical treatment is needed; in the end, it turned out to be a boob job.