While I am just cheering for Seon to get her happy ending, as the author has done a good job of making her endearing to the reader, I'd be lying if I said I wasn't hoping for her happy ending to be with Mary, even after the stunt Mary pulled. However this chapter was clearly meant to be the point where Seon begins to bury her feelings for Mary into the ground once and for all, and to begin setting her up with Lisi.
Which I wouldn't actually mind if it weren't for Lisi's appearance. It's another case of "drawing a guy and calling him a girl" that you can sometimes see in Korean webcomics, and I don't know if it's because Korean lesbians like girls that are basically guys, or if it's to not necessarily alienate parts of the readership, or some other third thing, but I am somewhat weary of it.