Responses

About the last part, I think it's sorta a revenge too bcs like Adante just spent the night with him, and when he woke up, he thought that he'll be there but he wasn't. You know the feeling of peace and that everything's alright now but it was just an illusion or smth
Alsooo the sex before disappearing reminds me of Ilay and Taeui
Yeah most of most of the running away problems would be solved with an hour or 2 of conversation and communication.
However, I have the opinion that Andente hasn't been able to provide Hyoseop the ability to trust him at his words. How on earth are you suppose to trust the boyfriend who kept his identity a secret and have to learn it from someone outside your relationship, and its not even the first identity he hid. Then you wait days for him to be safe, only for there to never be any communication as you don't know where he even is and he promised he'll be back within 2 days. Then your entire relationship is started as a employer and employee, that you knew started extremely transactional.
Hell after the dungeon was finished you don't even know wheree he is, and if you can contact him. Then in the news is not the guide that was saved in the dungeon nor about you, that is taking on the role as the entire guilds guide. Your place in the workplace was basically overtaken and the person that can do that is not only your boss, but someone who called themselves your lover.
Then finally he arrives and in public, after a hug gives brief explanations. "Hey, sorry america kept us busy. The new person is absolutely temporary." However his body's condition is even better treated than after your own guiding sessions that involved sex. You're an S class guide, that's not an easy feat and at that point what other choice than to think, "He slept with someone else"
My only issues is that he slept with Andente before leaving. Should have just left after checking on his condition. Also could have tried using a phone at least once, its the modern age of technology.