Am I being petty?

My boyfriend and I have been together 2 years. I love him and he’s great, but he also can be really clingy. Lately I feel like he wants to be around me 24/7 being around me to the point If I want to do my hair, get dressed, anything, he wants to sit with me or right outside with the door open. He does this ALL THE TIME and knows this annoys me.

Earlier today, he wanted to go and eat somewhere. I said okay and told him I’d get ready and come back downstairs in a minute. Instead of waiting like I thought he would’ve, he came upstairs and wanted to sit on the bed. I asked him if he would take the dog downstairs, as she was jumping all around the room, trying to hint to him that I wanted space. Instead he said “no, I want to sit and hang out”. I got frustrated and told him that i felt he was being really needy and that i didn’t see why he needed to sit with me while I got ready. I just wanted a tiny bit of space to myself as we’ve spent the last 3 days with each other all day. But he says I’m just being mean to him.