Responses
Sadly, I think that's the direction this is going. He's going to take out his frustration out on ideum because Ideum is just his sex buddy and nothing important. "I wasn't waiting for you..." already implies he's been ruminating through his feelings that he shouldn't care for ideum. So he's in denial and just angry at his own jealousy.
Jaeyi is so gonna be hated next chapter, I just know it.