Mi-ho replies simply: “By liking him. Because I liked him so so so so much, he liked me too.” If Hye-in wants to get a guy to like her, she out to try telling him she likes him so so so so much, too. And she teaches her the finger guns. ...
Other characters like Tom (James Fleet) and Scarlett (Charlotte Coleman) are comic relief while a same-sex couple, Gareth and Matthew (Simon Callow and John Hannah), and Charles’s deaf brother David (David Bower) are part of the group with no judgments about their sexuality or disability. ...
She basically isolates herself from other people. but now she can have a comfy talk with even ghost (SA), and she finds out that chef has been caring for her even in her true form, so i guess it gives her a little courage to show her real self, the "neutral" BS, not the timid...
Given how the drama series has quite a few inside jokes, it is also possible that the drama writers (or even Kim Sun Ah herself) decided to have a little fun with Sam Soon's name and give it the worst possible meaning. If I had to guess, I would say that #4 is the most likely...