I really adore that he realized that it's not about making her change her attitude but that he needs to change in such a way that helps her to trust him. He's so honest it's adorable, but poor thing doesn't have the communication skills to match. Also doesn't help that Valerie is guarded/a bit paranoid.
On another positive note though, I think Serenia found her future protégé.
and just like that he is near the top of the ML charts with a proper love confession no room to deny there.
Wonder how she is going to react to all this.