Is this abusive, stalkerish, or just annoying??

I have this friend, been friends for maybe 3 years, even if he's creeped on me a ew times. Long story short he's extremely extroverted and my SO and I are very introverted. It's gotten to the point where people are avoiding him because he will do anything to get you to hang out. Including try to guilt you slightly.

I'm sitting in the parklot at my SOs work, who's closing right now. And guess who shows up and parks next to me with his long term gf and kid? Ugh! He was saying he got his kid a few fireworks and wanted us to come out. My SO were planning on a "date" at a fireworks show, but he doesn't like these types of answers so I just said the first thing that hit me. Which was my sister's coming out to watch with us. You could see he didn't believe me and was hurt, as always.

So now I'm sitting here regreting that because they could easily just come find us at the show. It's not far from our house. I'm about to explode! I get he's extroverted and just a little more than desperately wants to hang out. But this isn't normal! 3 years and he won't suck it up and accept we're not obligated to hang out. I'm gonna blow if he says anything about it later! My SOs depressed and I can't handle this crap between that and everything else.

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