He went to a breast place AFTER they were dating, and you are wrong, a worker is not cheating cuz it's a job for them, the one in a relationship who paid the worker is a cheater cuz he is the one who 1 break the trust and agreement of being in a monogamous relationship, 2 for whatever reason went to look for someone who gave him human touch and a good time instead of his partner (what in itself shows this person is avoiding taking part in making the relationship work, and is not satisfied with his partner)
Seme went after seeing uke talk with a guy thinking he was cheating too (cuz they were already in a agreement of being each other only ones) them he instead of confront uke and hear the true went to seek a good time to stop feeling bad, in his mind if he paid he is not cheating (I would respect that if he didn't showed to be bothered by his partner doing a sex work, what means he indeed see emotional investment in the act of sex even if it was paid, in his mind it can be not cheating but in his heart it is, and as cheating is all about a betrayal of your partner feelings, I would consider it cheating, since to him his parter would mind and would feel hurt by it and he still did it and we know he thinks like that exacly cuz this is what he do as "revenge" for being cheated)
Why is everyone saying the seme cheated when they weren’t even together in the first place? As far as I read in the beginning neither even mentioned wanted to be in an official relationship. As far as I’m concerned the seme didn’t cheat. Plus even if it’s the uke’s job technically he cheated too ( since that the logic everyone else is going with)