How to tell if a guy likes you through text?

I know a guy but we don't live close anymore and never got the chance to talk enough.( I had a boyfriend at the time) He messaged me on Facebook and gave me his number to text him. He's said he always noticed me, he said " a beautiful girl like you, how can I not". But I started texting him and we text for hours sometimes and he uses smiley faces and :P faces. But I always have to text him first. I text him about every 4 days or so, once in a while they go un answered but I know he's working or sleeping, but I don't get a response until I text him. He laughs a lot and its always fun. I think he's shy but I really like him and I may be moving closer to where he lives soon for a job and I'm trying to get to know him but I don't want to seem annoying. So does it sound like I have a chance and should I continue to text him?
How to tell if a guy likes you through text?
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