I didn't like that ML is still chasing after the FL at the end of series. They should have gone their own way separate from each other. ML is stalking her after putting her and her family through so much pain. ML is poorly written character.
This is the one drama where i disliked the ML so much that i wanted him out of FL's life. In the end, he even colludes with FL's friend to make the FL think it is a coincidence/fate. Regarding other storylines, it was good pace and better ending for all of them. If only FL found another man who loves her and ML just remains as a brother, the drama would have been much better. Just because he was ML, they tried to link him with FL even with all the pain between them. The ML seems like an idiot who can only focus on one thing at a time - either the corporation, or love or his company or his lifestyle or family. He can never balance these things. He gives up everything else for one. And late feels sad and apologizes over that fact but never learns. He never thinks things through and just apologizes when the damage is done. And when the apology is accepted, he gets back doing stupid things that can cause more pain. Follows a selfish lifestyle and apology cycle.