I agree, many situations are different. However, addiction is the same. It's progressive. It's dangerous. It hurts those around us. It's a decision if living with an addict is more painful that what you get out of it. For some the answer is yes. For many, it is no. For others, it may be not but might not be later. That being said, it's wise to PREPARE for the worst, and hope and pray for the best.
I am glad you are feeling peace.