I have watched all the versions of itazura na kiss. So that doesn't count. Would love to watch something really similar. Girl loves boy but he doesn't. Extra points if the guy is mean/arrogant/rich. 

Thank you!

Will check it out for sure.!!
Beginners! (Hiro/Teppei at some point), Heart to Heart (Se Ro/Doo Soo), Nodame Cantabile, Sprout, Summer Nude (Natsuki/Asahi). 
Woah a lot of them!! Thanks a lot!!
You're welcome :) they don't fit the 'rich/chaebol' type though, but the feeling you're looking for is there. 
That's alright! Will watch them all soon.