A return to use after weeks or months of sobriety can feel like everything you built just collapsed. It didn't. Addiction behaves like other chronic conditions, which means it can flare, and a flare tells you something useful. Relapse is information about what your treatment plan was missing, not a verdict on you as a person. What you do in the next day or two matters more than the slip itself. Reach out, stay honest about what happened, and get back to the support that was working.