It wasn’t supposed to be this way… he was supposed to turn you in for your affiliation with the jigsaw murders, but what happened was the exact opposite… he grew to love you and he wanted to keep you safe, even though deep down he knew it was wrong to protect you he couldn’t help but want to…

When you were brought in for questioning (since the only one that actually knew your relation to the case was Peter and he never told anyone) Peter helped lead suspicion away from you, and when that was all said and done you went to talk with him “Why’d you help me?” You ask him quietly so nobody heard “I don’t know…” He told you. Which was the truth, he really had no clue why, but he just had protective instincts for you.