It is literally in this chap and the previous one...
Actually I think u should read the whole thing again lmao
He wasn't repulsed by the guide's "touch" he actually loved it, what he hated was the fact that he loved the touch. He thinks that all guides are pervs who want to take advantage of him. To prove him wrong this guide did everything he could to restrain himself eventhough he actually likes him, so the esper got agitated. Cuz u know he so strongly believed that every guide is a perv and this one was acting like he was anything but, and now, in a needy, drunk and drugged sorta way which in the comic said "backlash from mission" he decided to come on to him. Since he actually needs the guiding and he's excusing it as him testing the guide.
Mind you it's mentioned abt 20 times that he isn't thinking straight. Pun very much intended.
Did I miss something? First the esper didnt want the guide, literally feels repulsed at his touch and would deny guiding, now he's jumping his bones (?) Is this some sort of malnourished effect that I didnt know about or does he have a change of heart