Unexpectedly boring/annoying

(3)It was never revealed what his intentions were when he drugged and bound the MC on the bed. I can only think he had extremely ill intent that does not convey love in the least, before he happened to find out that they switched. Further, is no one going to bash the MC for being too stupid and going behind his lover's back to meet, accept predatory advances and promise for more clandestine immoral meetings with the teacher when he knows his lover would hate it? That was so gross and wrong.