Least weasels are hunted and endangered, he would be pretty stupid to just outright say that
he knows the reason why ML is looking for that type of beast kin and he knows that that is him. And honestly, with how unguarded he is with the ML that's not even up for debate
Not if he's been told not to? Sooooo....
Dude, first thing ML did was saying he wants to mate with his first love. And since MC knows that he's an endagered species he definitely wouldn't just tell ML that it's him.
What's even more annoying is: (huge spoiler)
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ML knows since the beginning that MC is his first love. So he's just unnecessarily pressuring MC to the point, when his hair turns white MC even tries to dye his hair/fur and suffers from an allergic reaction...
Istg if in the next chapter they got interrupted and he can't say the truth I'm gonna curse who ever interrupts themmmm