Yass khalid is such a green forest! He had a lot of chances to take advantage of renato's vulnerabilities and growing affection but he holds his own desires back and let renato come to him like he's such a goal honestly!
Can u tell me the reason
Spoilers
So basically he didn't like that rentaro wanted a arranged one, khalid basically wanted a REAL marriage with feelings involved that's why he reacted like that
Awwww
Knowing khalid because of the novel and i can't be mad for him reacting like that when rentaro suggested the marriage and he refused (the reason is actually so sweet...)