Dreams involving navigating through different rooms often symbolize exploration of your subconscious mind or different aspects of your life. Each room can represent a different part of your experiences, feelings, or even relationships. The act of going through doors suggests you're seeking new opportunities or insights, perhaps moving away from past habits or situations.

The offer of meth in your dream indicates a confrontation with past temptations or struggles. Your firm refusal signifies growth and a desire to maintain your current path, especially if you are committed to avoiding substances that you no longer want in your life.

Seeing your ex in the dream might reflect unresolved feelings or memories related to that relationship. It could indicate a need to process your past experiences and how they may still influence your current life.

Finally, ending up outside could symbolize a sense of freedom or a new beginning. It may represent your desire to break free from past influences and embrace a healthier, more authentic version of yourself.

Overall, this dream highlights your journey of self-discovery, the importance of making choices that align with your values, and the need to confront and move past previous relationships or habits that no longer serve you. If you find yourself reflecting on these aspects in your waking life, consider how you can further cultivate that sense of freedom and growth.