You need to start thinking like that HC, remember what he became, not what he was. He's a disturbed person and you don't need that in your life, especially now that things are going so well for you.
Leave the past behind you dear, look ahead into the future. Stick to No contact, leave him alone, he doesn't deserve any contact with you and giving him even a word or two will only start everything up again. That's what my gut tells me, and I always listen to my gut.
You know we're here for you whenever you need us. I know it's hard to take your own advice, so take ours, your head knows the right thing to do, so listen to it. Don't change your forgiving kind caring heart, but realize that it's not always right. If it feels wrong, then it is.
The fact that you asked, well, that shows that you know what to do. You just needed confirmation, but you already know the path to take. So, I'm pushing you down the right path my dear, now walk! :)