What question(s) would you like to address?
Yes- there is a chance as long as he's open to trying. You've got to find out what is going on with him (why the change after his release) Your stress level should have nothing to do with how he reacted.
If you're able to communicate with him, let him know that you've waited for him to get out and you are flexible in waiting if he agrees to make things work out. He may not be ready for a serious commitment especially in being a step dad figure. It may be this that had caused him to become distant.