I would be the same as Aaron. Why be two faced & pretend to be pally with people you don't like?? He knows full well that Jay & Anton don't like him & the feeling is more than mutual, so I respect him more for actually be true to himself & telling Jay exactly how it is...
And as others have said, if Aaron DID talk to them & pretend to be pally everyone would be shouting about how two faced he was, slagging them off behind their backs, yet nice to to their face...