Am 17 and have crazy delusions

Honestly I have a problem. I know there is nothing wrong with fantasying about things but I feel like it's wrong. I my imagination I have a boyfriend, I've done dispicable things to him that we both enjoyed. I don't want to mention it, on here. But I would love to get out this fantasy world What do I do It's silly I know🙃🥲😶 Maybe it's because I want a boyfriend or something I don't know Let me know🙁