Just think of it as a CRUSH. Meaning that you will be crushed for getting rejected or get crushed for cheating. Start thinking about the relationship you are in right now. The more you think about your girlfriend, the less your thinking about the other girls. If you're happy about your relationship right now, keep it. Don't throw it away. If she makes you smile and you have a good time with her, then its better to continue to focus on that relationship. When you think you are having chrushes with other girls, think of reasons why you have no chance with them and ask youself "Would I be really happy if I date them?". Relationships last longer then chrushes. Keep that in mind and continue to focus on your hobbies. That might help.
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ADHD-PDD/NOS//AS (I am a friend and a menace to society)
Autism, is it in you?