While you may think that your friend is not a danger to you, your mother was able to convince a judge that he possibly is.
If this was ex parte - an emergency hearing where only your side appeared petitioning, then the order is temporary. Your friend will have a chance very soon (as will you) to show up at court again, tell his side, and either the order will be extended to a final order (lasting longer) or dropped.
If your friend was also present at court, then that would have been the time for his side of the situation to come out. I have to be blunt: if your friend also was at court, then perhaps one of the reasons for you have conservators is that you lack the ability to protect yourself from bad people, or even recognize a bad person. Perhaps you are very bad at social cues, and lack the instinct to back away from dangerous situations.
I realize you are sad and miss your "friend". I am suggesting that although you seem to be reasonably articulate that you are not seeing the reality of your situation...