I understand how you feel because I was feeling it too but I think you are being too judgemental. The FL might have liked Suho in the beginning but they were never in relationship. 3years is a long time and feelings change (sad truth). Instead of denying her feelings and being stuck in the feelings for a person who didn't even contact her once in 3 years(?) doesn't sound legit to me. Suho might have been shown as a love interest and hence our bias but he might have got another person already. Seojun loves her and is good to her. J don't think that will change even after he saw her true face. Beauty lies in the eyes of the beholder.
They did keep in touch but it just stopped in between those 3 years. Yes, they were never official or in a relationship but girlie was willing to walk through tartaros for Mr. IghostedyounoeI'mbackfromthedead. Tbh in my opinion though 3 years is not that much if you really like the person but then once again Seojun is one caring and good looking fella so yeah ig we'll have to wait for the story to unravel. Ciao
In Korean chapter
Suho tried dating another person during those 3 years so you can’t blame Jugyeong for moving on. He wanted to forgot her so...He has no hope he would go back to Korea so he tried to forget her..Jugyeong is really not at fault here
He told her he would come back and left her hanging and feeling sad that the person she likes doesn’t even contact her
Ok so I've finished this until the latest chapter and nothing breaks my heart more than how Jugyeong just forgot about Suho after 3 years? I mean I get it it's long distance and Suho is some mysterious edgy guy BUT HE GENUINELY CARES AND LIKES HER WITH OR WITHOUT MAKE UP! don't get me wrong I like Seojun but sweetheart you were there at the airport when they bid their farewell AND HE'S LIKE YOUR BESTFRIEND FFS. I got really angry at Jugyeong to the point where I just said "I wanna see them mess up and I wanna see Suho again" cause honestly Suho does not deserve to be replaced and thrown like that AND WE KNOW DAMN WELL THAT SUHO STILL LIKES HER NO SHITS WHATSOEVER. I love Jugyeong and Seojun but I'm in it for Suho. Can't wait for the next chapter tho