If a guy does this what does it mean

So I gave this guy my number I’m 18 and he’s 24. He texts me every now and then and then he asks me out he really only texts me for an hour or so and it’s usually about some song he likes or about our date that’s coming up maybe he’s not much of a texter but if a guy does this what does it usually mean. It’s confusing because he asked me out and he’s not changing plans so I don’t think he lost interest buttt.....