Why is this guy so clingy after the first date?

So I've had a date with a guy and it was really cool. We talked a lot and had fun. But the problem is that he's already very clingy. He texts me all day and asks me questions about myself and how my day is/how I feel etc. using a lot of kiss and blushing smilies during texting. He also always asks me where I am and what I am doing (which I find a bit creepy) and tells me the same about himself. When I send him funny videos he watches them immediately. He even got angry with me because I didn't tell him I was going for a walk because he would have wanted to go with me...
I think it's cute and all but I feel pressured and I think he's moving way too fast. I like talking to him but he's just too much for now. I think you can act this way when you are already in a relationship but not now. Why is this guy acting so over the top?
Why is this guy so clingy after the first date?
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