I'm having a hard time figuring out why Martin didn't speak with the NFLPA investigator. May have had a more benign reason but it seems to me like that may have been advice from his lawyer prepping to sue.
My latest uneducated guess: Incognito thought Martin was cool with it because he was going along while Martin was secretly struggling with it. Martin seems too sensitive for football regardless. I don't like Incognito but that has more to do with the harassing of the golf course girl than this incident. The "culture of football" doesn't excuse any kind of behavior but we should all recognize the possibility that although the language was nasty Incognito's intent wasn't truly malicious.