Judging by his past self, he finally gathered the courage to say what he felt. He finally voiced out his opinion.. I'm so proud of him. All those times, he suffered a lot, did not able to speak a word about his feelings towards the harsh treatment given to him by that cruel prince, stupid sister and father.
I'm so glad he was saved by good people. You should not run after him yooyoung. If he really loves you he'd do his best to win your heart (not forcefully or any manipulation involved).
Nevertheless yooyoung still loves him.