Hes trying to take his mind off the things that are stressing him it's not that deep
You may have interpret it in wrong way. He is no way a selfish person. He just want MC to not think about much of his current situation. Can you even blame him for that? He waited for mc so long and don't want him tangled up in this mess, at least not alone.
you cant really apply your logic after what both of them have been through, stop projecting
Previous statement was how this sloppy handling of this scene came off to me. Clearly I am not the only one who thinks this. Great that you all have a brain with which you can think.
Uke: Read the diary of the original Doyoon to understand the way I am feeling right now.
Seme: Hmm, why is he not thinking of me? Think ONLY of me. It is now, sexy time!
… The way he is so self-centered is off-putting. This is not about you or about him liking someone else. Wtf? ╮(￣▽￣)╭