If a guy is talking to you almost everyday, does that mean he is interested?

So I have been talking to this guy for about 3 weeks now, we have gone on a couple of dates and I really like him, but I am not sure if he feels the same. The one thing I know is we do text almost everyday, he even texts me after he is done hanging out with his friends to see how my night was. So is that a sign he likes me? Or is he just being polite?
If a guy is talking to you almost everyday, does that mean he is interested?
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