I just accidentally run into a tv show that reminded me of a guy who rejected me and I'm feeling like vomiting. Why can't I move on from heartbreak?

Anonymous
I was binge-watching Netflix and run into an episode that I watched with a guy who rejected me. I really didn't know that's the one and I'm shook and feeling like vomiting. The rejection happened more than 18 months ago and I'm so tired of still not being able to move on completely. Am I hurt all the time because of the rejection? No. But when I run into something or someone that reminds me of him I feel so much anxiety and embarrassment.(I did pretty dumb/stupid things to/with him). I've tried everything to move on. Like talking to other guys, deleting everything related to him, finding new hobbies, and I'm still pretty much struggling. I didn't even get to date him. Can someone please help me out?
I just accidentally run into a tv show that reminded me of a guy who rejected me and I'm feeling like vomiting. Why can't I move on from heartbreak?
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