Seraphim's manga / #Cheating(1)

This doesn’t sit right with me. Basically the younger seme is disrespected by his partner and nothing gets resolved. SPOILERS The seme asks for one thing which is for the uke not to hang around the school nurse and warns him about his intentions. He’s 100% correct and until the literal end he does not listen and disrespects their relationship. I would break up then and there, seme has flaws too but the uke is dumb. I hate the blackmail saving your partner trope, choosing to sleep with someone else is still cheating. Seme was actually clever in trying to stage his own counter blackmail