michael and alex scenes in episode three oh eight of season three
the tiny moments are what does it for me. alex briefly had his hand on michael’s shoulder after they got inside the truck (gif below). or the fact that it was alex who grabbed the gun and gave it to michael. also the fact that alex, listening intently, didn’t intervene until michael was getting emotional and about to shoot, which michael could have regretted if jones was telling the truth about him and max being linked).