You can be hero and have some sexual relationship. Not like just -blam!- and killing.

It's too late to be a hero... All of you have no idea why I joined the hive, all but one... [spoiler]His name is Rahool[/spoiler][spoiler]I remember the horrors you committed Rahool. All those purple engrams, all those eager Guadians. I had just come back from a strike only to return to piles of guardians dead. Immediately, I took out my trusty rose and looked for suspects. "They shot themselves" said a female Titan as she came closer. "Why?" I asked. Because of all the purples turned to blues, all the hope turned to sorrow. I looked up and saw Rahool, laughing as a warlock pulled the trigger and sent a round through his own head. Now all of the guardians will know the atrocities you commited, now they will know why I joined the hive, now they will know why I changed my cannon from justice to poison.... so I could put an end to your reign of terror and avenge those who died.[/spoiler]

It's not rahool's fau- ah. Wait. -blam!-er. He just got ghorn, and don't give it to the guardian who requsted to decrypt it? What an asshole.