Everything Ohn likes about "Seowoo" is the actual Seowoo not Jaewoo. Jaewoo knew Ohn for years but didn't care until Seowoo was interested in him. Jaewoo could have said no to pretending to be Seowoo but he did it anyway. Seowoo just needed Jaewoo for the introduction and Jaewoo should have backed off awhile ago. There has been multiple occasions where Seowoo has proved he is able to spend time and talk to Ohn on his own. Seowoo is already shy and idolizes Ohn so it makes sense he would want help to make the first move. Ohn doesn't like Jaewoo and he probably had some part in Ohn's trauma for Ohn to dislike him so much. Jaewoo taking advantage of the situation to get closer to Ohn fits right into the Ohn's bad image of Jaewoo.
Everything Ohn likes about "Seowoo" is the actual Seowoo not Jaewoo. Jaewoo knew Ohn for years but didn't care until Seowoo was interested in him. Jaewoo could have said no to pretending to be Seowoo but he did it anyway. Seowoo just needed Jaewoo for the introduction and Jaewoo should have backed off awhile ago. There has been multiple occasions where Seowoo has proved he is able to spend time and talk to Ohn on his own. Seowoo is already shy and idolizes Ohn so it makes sense he would want help to make the first move. Ohn doesn't like Jaewoo and he probably had some part in Ohn's trauma for Ohn to dislike him so much. Jaewoo taking advantage of the situation to get closer to Ohn fits right into the Ohn's bad image of Jaewoo.