He has accepted that she doesn’t love him in that way. He has never shown signs of wanting kill his brother for her. The reason he wants to kill his brother is because he wants to protect his mother. No where in the story did it even hint at him snatching away Elise after killing Linden. That’s because she won’t love him back the way he wants if he does. He wants real love with Elise, killing the person she loves kinda would ruin all chances of that.

Mil is lying to himself. He knows one of the big reasons why he wants to kill his brother is because he wants Elise. He thinks he can think of a rational reason why his brother had to die and Elise will forgive him then some how fall in love with him. Boy you better just tap out and go traveling on your own. Your mom and uncle deserve to die anyhow.