I think she means she would have struck her son had he done something similar to the other prince.. The translation a d proof reading on this is a bit whacky.Just when I finished chapter 1, chapter 2 drops. Neat!
page 10
Why would the mother want to smack MC? He was defending the girl's honor!
The words of the prince of Luminous don't really need to mean anything. He already had another love interest, so he was speaking whatever he could think of to justify terminating the engagement. He is an idiot, so his excuses didn't hold water all too well, but they were the best he was capable of. Just like a kindergarten kid can call another kid ugly, even if the other child is not ugly at all.Wasted opportunity for some sort of gap here. Like maybe she is a meat head? Or she has crazy expressions? Something to make sense out of that other Prince’s apparent stupidity.