You should stop lying to yourself and move on.

Yes, I know you said “I can’t move on.” That’s a lie. You can move on. You just don’t want to.

You should understand that what you’re feeling has been felt by seven billion other people. This is part of being human. As you go through life, you will fall for people who are not available. This will hurt. You move on. Your ability to move on is one of the markers of an emotionally mature adult.