Daydreamologist:
I'm glad that Dal Mi is finding out about the letters soon. I want her to look at Ji Pyeong and actually see him. Right now she only sees Do San. Though I'm a DalDo shipper, I want Ji Pyeong to have a chance, so that it's fair. Besides, if after finding out, Dal Mi chooses Do San all over again, that means she sees him, too, without the letters.
Yes I think it's only fair if HJP is given the same chance as NDS (to date Dalmi) after SDM and NDS parting away from each other. Since many people said HJP was the one who connect emotionally with Dalmi (because of the letters and he also has the same mindset with SDM).
If HJP is a good match with SDM when they're having a relationship together, I will feel okay with it even though I personally like NDS better. I'm looking forward how the writer will give solution to this messy love triangle.