We always want to give them a chance and support them when they're in recovery. It's a natural thing for a mother or parent to do. I try to base my interactions with my son entirely on his behaviors (he is still using). If the behavior is not acceptable, I distance myself from him. If his behaviors are good, I can tolerate limited doses of contact with him.
There is nothing wrong with doing what needs to be done to keep yourself in a healthy state of mind.
gentle hugs