I don't get the hate or why some don't understand their love...

To me it's clear, ML can't recognise faces and he met someone that can fix his condition with physical touch so he went as far as to threaten the guy saying he won't sign a contract with his company if he didn't agree to touch his hand once a week. He was a j*rk no doubt, but he was desperate cause he lives in hell and this is a new work where he doesn't know anyone by voice either. MC got to keep his job and some recongnise from his superiors as he got the star to join the program (ML). With time ML showed his true face, didn't push MC to see each other often and respected his times, if MC only had 5 minutes ML would clear his schedule to be there on those 5 minutes, he bought him sweets everytime, let MC take the lead as how far he is willing to go (hand, hug, kiss, sleep), he even defended MC when he was being bullied on work and rejected to work on times when MC was being overworked so he would have a break too. He was a j*rk cause he was desperate and on a horrible situation, he is not really a bad guy and MC catched on to that so he fell in love.