
for clarification he doesn't think cheating is bad, he just think that they are overreacting at the subject. The couple could've talk it out/divorce without any public attention but the media wants money. He thinks like that because his culture is polygamous and let me tell you it's okay. Monogamous doesn't equal love and love doesn't equal monogamous.
And the fact that you're talking that he's a playboy just because the uke think that "he's okay with cheating(not thinking that he's just okay with polygamous) as well as being friendly with girls not the same from his country. In conclusion the uke was jealous and the seme was just not conscious at first because standards about love and skinship in Japan and Maasai is drastically different. AND IT WAS ESPLAINED IN THE FIRST TWO CHAPTERS