"What is the use of an understanding boyfriend if I don't love them? If they can't make me feel things that I can feel when I am with you? No matter how perfect a person is, as long as my heart is yours, they wouldn't matter in the least" Calter spoke his real thoughts and feelings
In his eyes, the person he loves isn't perfect but it was Kence that his heart wants
If Calter was swayed after seeing a 'perfect' person then that only mean one thing... he really doesn't love Kence
There are things that Calter is not a hundred percent sure of. However, there are also things that he was absolutely sure and one of them is that he deeply loves Kence
If it was not Kence, Calter wouldn't want to have a girlfriend or boyfriend and get married
He only wants to start a family with Kence. Others simply don't have a chance with him