If a guy texts you does that mean he likes you or just being nice?

So I like this guy he is 29 and I'm 23. We have been on 3 dates and known each other for 3 weeks. I haven't seen him for a week in a half. But he usually calls or texts me about every day and he is the one that initiates it. I will sometimes call or text if I don't hear out of him. When he does call though its usually to say goodnight and he will only talk for about 10 min is that normal for a guy? But lately he has been just texting me I haven't talked to him on the phone since 4 days ago. Do you think he likes me? Or just as friends?