yes he always jealous when she go dance with Kang Jun instead of him, i see his face really change and the eyes looked jealousy on them on episode 13. But i see Guk joo tried hard not to be with him, because she know people already ship Jackson and young ji, also she felt that she is not suitable to be with him, and she always say to Jackson that she is his mom Korean, but every time she said that or refused to be with him and being close to Kang jun. Jackson face slightly change to disappointed, even somebody make fun of her, Jackson face easily turn in sour emotion face that show he didn't like it.

+annisa kmal. Yes yes yes ur right I'm not the only who sees it

+Rachelle Olivia He actually did get jealous in episode 25, when they invited Bam Bam to the house and Youngji was paying attention to him Jackson got jealous.

@@emrachel6244 i think he was playing jealous bc he was laughing half the time then serious he just wanted to bc guk joo wasnt there so he wanted to bother youngji

I know me too !!!

+Joan Horanson come on guys~! this ship is real !! and I like it so much !!! I've seen enough Roomate episodes to understand that Jackson is jealous (especially the one with Taceon when he prepared breakfast)

i think jackson was just playing with youngi bc when his with guk joo he really serious and not laughing

Korean jokes are almost always related to body shaming some way or the other :(

Roomate seaseon 2

I don't know if you know yet, but just in case it's Roommate Season 2

Hey bud you got a phone? (You can watch it with breaks every 10 min) you got $5? (say goodbye to everyone you love for the next couple days) seriously so addicting.

+DistressedDamsel79 its his way of telling himself to be serious

Cause she was making him laugh with her smile. He was trying to act.