They’ve known each other for years, only one of them have been pursuing and keeping a promise (regardless if silly), so yes ML deserves to move on because MC isn’t reciprocating (he likes ML I know, but Ml doesn’t deserve to wait more. And MC isn’t obligated to like back. However, they are couple so obviously MC will, but later).
Not to mention MC dismissing ML over business while bandaging the rapist. The leniency for a rapist versus a friend you’ve known for years is cruel.
And yeah Uke isn’t bad, or evil, but imagine a top dismissing the bottom’s concern about the rape. So I get where OP is coming from. I heavily blame author’s writing because this is out of character for the bottom here to do. Someone who’s supposed to suspect all alphas/hate alphas, so leniency towards the Secretary is so weird.

I don’t say this often but I’m here for the ML moving on a d find someone who actually appreciates him.