
How are you even supposed to know you’re one step away from starting a relationship? He didn’t know that the mc was going to confess his love or anything. The seme had doubts about himself and his ability as a dom. He didn’t want to push the mc because he’s seen how that has played out in the past. Yes, he liked the mc from the start but he didn’t know the uke felt the same until the confession. If you’re fwb with someone, then you sleep with someone else that is not cheating. Now, if they were in an exclusive relationship, then yes, that would be cheating. The uke wasn’t even jealous, he just wanted to let the seme know how he felt.
ML was about to cheat on MC if he didn’t stop him. This is ridiculous. Bet next time they argue he will look for other people.