as I can remember, there will be a storm in the upcoming chapter. the news about him meeting bella (unconcidentally) spread through the newspapers. once again, she would believe in Regan and come back to him cmiiw
I disagree that if Regan fails once the whole treatment is worthless. No one can just wake up one day and be a different person. Progress comes from effort, success and learning from mistakes. If Regan screws up once that does not mean he is hopeless.
His behavior is very typical of addicts. Especially his withdrawals. And it's nice to see a character who suffers from it. If takes a mental toll. And sometimes it takes something big to happen for someone to want to change their ways