Quote 1
Mr. Driscal spoke forcefully, looking directly at Cole. "Bringing Peter here might be a huge mistake, but we had no other choice. This has been harder for us than you can ever imagine. We'll be staying until we're positive that he's safe. Nothing is going to hurt him again." (25.37)
Cole has changed, but it's clear that the Driscals still view him with suspicion. To be fair, their experiences with him have been terribly negative—after all, he's the guy who hurt their beloved son.
Quote 2
Mr. Driscal poked a stiff finger at Cole's chest. "If you do anything to hurt our son now, God help me, you'll go to jail until you rot. Do you understand me?" (26.20)
If Cole messes up this time, there will be no second (or third) chances. He's going to have to go to jail and serve out his time. It's a good thing that Cole has finally changed enough to want to be a better person and isn't interested in hurting other people anymore.