Responses
I think he doesn't have in special feelings for the healer girl, or he had those feelings (past). I guess she more of looks up to her and feels indebted to her for helping him back when he was weak. But you are free to speculate whatever you want ;)
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[Spoiler below]
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Because one thing is for sure he didn't end up with her. He married Cha hae in and they both have a son together.
huge bomb right there omg-
yooo i just realized that jinwoo told himself when that healer girl left "i have another reason to get stronger" or something AND he mentioned that he would ask her out aGaiN if he ever visits her in her hometown. So yea- tHoUgH its just a speculation since i remembered it