I know she is glad that the drama is over but still upset about the loss. According to CBS, Williams was given a warning from Ramos after the umpire determined her coach was attempting to instruct her using hand signals, which results in code violation. Williams was upset by the accusation, denying that she received any coaching and claiming that her coach was simply giving her a thumbs up. She demanded an apology from Ramos.
Williams remained upset and later smashed her racket on the court, which resulted in another violation -- this time resulting in a point penalty. This made the 36-year-old Williams even more upset, leading to her further chastising Ramos -- including calling him a "thief." Eventually, a full game penalty was leveled against Williams.
By definition, verbal abuse in Grand Slam tennis is explained as "a statement about an official, opponent, sponsor, spectator or other people that implies dishonesty or is derogatory, insulting or otherwise abusive."
Which is ridiculous.