A relapse means someone went back to using after a stretch of not. That is a fact, not a character flaw. Addiction is a chronic condition. Like diabetes or asthma, it can flare. When it does, the return to use tells you something the treatment plan missed. It is information, not a verdict on you or your loved one. What matters most is the next day or two. Reach out, be honest about what happened, and adjust the plan before the days stack up.