Ex shows up at my house uninvited

Okay, so I just need to vent because I feel really uncomfortable and annoyed right now. My ex has always had a habit of just showing up whenever he wanted to but tonight I SPECIFICALLY said “No, I already had a hard day and I don’t feel like entertaining tonight.” He is here, anyway… he’s sitting outside in his car right now after banging on my door for 10 minutes straight. I’m confused. I’m uncomfortable. I just needed to tell someone one about it. Any encouraging words or your favorite anime recommendations are appreciated. 🙏 I have a feeling that it’s gonna be a long night. 🤦‍♀️