I think Im scared

I think I’m scared to give him a chance because I’m so used to being alone. Every time we talk I’m there and I find myself wanting to talk to him but there are times I just want to be left alone again and I hope he’ll forget me. Sometimes I try to disappear from social media for a minute and I was gonna try the other day but he ended up messaging me so, that failed.
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I’m not trying to play games with him. He’s a really sweet guy...I give him the same energy he gives me but I think I’m just scared. We talk and I like it but as soon as I notice, I often find myself trying to run and hide.
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I just need someone patient and understanding. Opening up isn’t very easy for me.