
I think the author did a good job in writing the main character. There are many naive main characters who we can't help but love even though their actions are selfish and they act cutesy to get away with anything but the main character here admits her mistakes and wants to resolve things with her ex before diving into a new relationship. She empathizes with the ML and is scared of ML of blindingly love her. Same goes for the ML. Although he is proactive in his feelings, he didn't do it excessively to the point of being possessive.

It's hard to imagine that Abel will fall in love with Karas considering he views him as a child. Hope he falls in love with Karas as just captain commander and finds he's his majesty later.

Right now we are at a point where only Karas knows it's Abel so he's being possesive and protective. Abel has not even a slight idea that Karas is the little boy he took care of so everything right now is his own innocent feelings.
In the novel Abel does struggle with his feelings towards Karas even before finding out but he does address that he is conflicted due to Karas now being an adult and having adult desires towards him alongside the type of adult Karas has become.
The romancey stuff will end soon-ish to continue the main storyline with Tryude and the black poison so Abel is genuinely taking what I'd consider a respectable amount of time before giving his all
well I can't blame Andrew, Luke looks like fucking Viktor Nikiforov
He doessss
He also looks like Nice in the upcoming To Be Hero X donghua, like they even have the same personality based on his PV video~~