MC is annoying and a bit of a pushover. Like he barks and all, but no bite. I get that ML is his boss but I hate how much he humors him all the time.
And then ML is an asshole and a jerk. His confession to MC was really out of the blue because his actions and words were always insensitive and rude. ML's heated gaze, as MC pointed out, was probably something if he found out about ML' s feelings merely through that.