Guy's Behavior

Am I responsible for this?

So when I was 17, I basically glanced over at this guy (20m) from across the room. Ever since that, he somehow developed an interest in me and would constantly stare at me from afar. The problem was that he'd never approach me and wouldn't reply even when I tried talking to him, so I dropped it.
However, he continued and would always stand at distance to stare at me. At parties, I'd catch him staring at me from behind the door. Although I only saw him occasionally, this whole thing went on for 5 years and tbh I kinda got used to it.
Once he was again staring at me from a distance, and I ignored it as usual but he it went on for a couple of minutes continuously. I tried ignoring him and turned the corner, but he kept watching me as I walked around. I then hid behind something for a few seconds, but when I stepped out, he was still standing there, watching at me. I felt like I needed to throw up, I felt powerless and I broke down in my car.
I tried to avoid him as much as I could after that, and was successful. It's now been 2 years since I've seen him and I recently found out that he's now engaged to another woman. However, it doesn't stop there. He uploaded his engagement pictures on fb, but coded it so that I can't see anything or know about his relationship. So basically anyone who has fb can see it as the photos are 'public' but I can't. I moreover found out that he still monitors my social media page.
I'm 24, and this whole think started because I glanced over at this guy in my late teens!
Am I responsible for this?
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