I found the eng translation of their Ep 20 Preview from leegloria22 too. Here it is:
[Love Rain Ep 20 Preview]
Seojoon says Inha and Yoonhee havent had proper pictures taken, so he takes pictures of all of them. Something happens, either they stay in Korea or go to new york together. At the end, Seojoons mom says for the two to get Married!!!
Their kiss scene looks really passionate... super excited! credit to leegloria for always making the best recaps every SARANGHAEYO :)
Love Rain fans, you can follow leegloria for alll Live Recaps of Love Rain!