It didn't necessarily mean that he was mentally ill if he couldn't control himself from watching bloody horror movies. Everyone has different preferences and reactions to gory, horror, horror, and other types of movies. Some people may like these types of movies, while others may not. Therefore, one could not simply judge whether a person was mentally ill based on the fact that they could not control themselves from watching these movies. If you find that you can't control yourself from watching gory, horror, horror, and other types of movies, you may need to consider whether there are other factors that interfere with your emotions and behavior, such as other stress, anxiety, depression, and other problems. If these problems exist, you may need to seek professional mental health support and help. However, if you just couldn't control yourself from watching these movies and felt uncomfortable, you might just need to adjust your mentality and habits to find a more suitable entertainment method to relieve the pressure.