The Gap Between A Supporting Character and A Sub Male Lead

I was a supporting role player in the novel, Round.
I was smoothly playing the role of a background supporting character, but for some reason, the prickly sub male lead was unusually friendly.
To hold onto my star points and endure until the end, I had to accurately address this variable.
“Lord Kiriel, do you perhaps like me?”
His handsome face twisted.
“No.”
Relieved by his denial, I just focused on my work, but…
“Miss Kana, do you not like me?”
For some reason, his attitude became more serious and blatant.
…What’s going on, why is he suddenly acting like this?