I don't think his reaction was necessarily in the wrong. People have a tendency to get more emotionally involved in something than expected, and when things don't turn out well they get hurt, even if they themselves can acknowledge that it's ridiculous that they are hurt, it doesn't negate it. I mean shit, look how much everybody here seems to hate Maya and Josy, and they don't even exist! People project their own feelings consistently, and if you wanna really look at it from a broad spectrum, his hurt feelings towards Maya and Josy could just as easily be his feelings towards his ex being brought up again, but not knowing how to acknowledge them.