He couldn't let anything go.

"Went on two dates with a guy where conversation was like getting blood from a stone, but I was lonely and lived in a small town. Second date, he drove and then drank a LOT, seemingly on purpose so he wouldn't be able to drive home. This was before Uber/Lyft, and he begged to share a cab back to mine. I agreed, and he spent the whole night crying in my bed about how I was going to leave him. 

I broke it off, he then looked up a performance I was in later that year in college and showed up. When the show ended, he waited around to say hi (like friends and family do) and then interrupted me while I greeted people to say 'SO THAT'S WHY YOU'VE BEEN SO BUSY' and then stormed out. He drove 35 minutes, and sat through a 90-minute play, for that." - Reddit uesr malhibou