Warning: SPOILERS for Grey’s Anatomy season 18, episode 17 ahead!
The shocking revelation about Catherine (Debbie Allen) at the end of Grey’s Anatomy season 18, episode 17, «I'll Cover You,» made for a gloomy contrast to the rest of the episode, and it also presented one of the show's oldest problems, again. The main storylines of Grey’s Anatomy season 18 center on Meredith Grey (Ellen Pompeo) settling in her new work life split between Seattle and Rochester and on Grey Sloan Memorial’s residency program risking shutting down because of a lack of physicians. In addition to the threats already looming over Grey Sloan, Grey’s Anatomy season 18, episode 17 added Catherine’s unexpected diagnosis, which could impact both Richard and the hospital.
Richard (James Pickens Jr.) and Catherine’s relationship has had its fair share of heartache. In Grey’s Anatomy season 15, Catherine kept her cancer hidden from all, Richard included, until she revealed it to Meredith and Tom Koracick, who would have had to operate on her. Her refusal to tell Richard until the last possible moment put a strain on their marriage, which was about to end in Grey’s Anatomy season 17 right before Richard started to exhibit symptoms later attributed to cobalt poisoning. While Grey’s Anatomy season 18 has shown Richard and Catherine’s marriage going strong, but episode 17 revealed Catherine needed THC juice to manage her pain as the cancer has progressed, taking Richard by surprise as he would have expected to learn about it from her and not by mistakenly getting high as he drank Catherine’s medicinal drink.
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Catherine’s shocking revelation proved once again Grey’s Anatomy’s
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