Help! My Ex showed up at my house (unannounced)?

I’m still in shock and never had this happened to me before so I’m not sure if this Is this something I should’ve be super concerned about or would that be overreacting? I haven’t seen him in months. last time I spoke to him I told him that the relationship isn’t working out, I told him that we could remain friends but I’ve just decided to block him all together because that would be the 3rd time I’ve tried to break it off with him and every time we “remain friends “ he ends up reeling me back In. I should’ve never told him we could remain friend , I only said that to be nice. It’s been almost 3 months since I saw him and he popped up outside my house and wanted to “talk” but I refused because he wanted me to get in his car so we can talk (my whole family was outside thank god) . He wanted to know why I blocked him and asked what did I think of him (while we were dating I guess) the whole thing was just awkward and i didn’t want to make a huge Scene in front of my family so I ended up telling him I’ll unblock him so he can talk on the phone so he can get away from my house.
sorry for the grammar mistakes.
Help! My Ex showed up at my house (unannounced)?
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