The fourth episode is very much the night after Gordon and Ashley nearly got it on.
Ashley not knowing Gordon's condition has made alternative arrangements to live. Although she still needs Gordon's help to look after the dog.
Gordon knows he messed up with Ashley. She is ignoring his texts and calls. At least the doctor gives him good news, that he does not have cancer.
However Ashley seems affected by what happened with Gordon. At work she cannot concentrate, she is under pressure, overworked and tired.
After the previous episodes where Gordon and Ashley's blossoming relationship developed just a bit too quickly. This one has some roadblocks, although it is something that could easily be dealt with Gordon telling the truth about his health.