Dream about mold on walls is an evidence for a carefree attitude toward life. You have an exaggerated sense of self-worth and self-importance. Vicious rumors by false friends will slander your character. The dream states a lack resources needed to satisfy your needs and desires. You are lacking self-esteem.
Mold on walls dream is a sign for a part of yourself that is deprived of attention and needs to be nurtured. You need to get rid of something in your life that is causing you much sickness, distress, or negativity. Others are not seeing things from your angle. It is sadly a warning signal for embarrassment in some situation. You are trying to insulate yourself from your surroundings and protect yourself from involvement in the situation.
If you dreamt about mold on walls:
The strange behavior of a romantic interest may have you confused. Is your partner avoiding you? Do phone calls go unanswered? Forget it. Sometimes people see too much intimacy as a threat to their independence and choose to ignore it. The best way to deal with this is to not press any sensitive issues. Just go out for dinner and act like a friend. Keep romance out of the equation for now!