Is it normal for my guy friend, who has a girlfriend, to talk to me for a week straight?

I met him through mutual friends and we all game together. Recently, he gave me his number so he can hit me up to game (since it’s more convenient than discord). Well I sent him a text and we’ve been talking non stop since then (about 7 days ago). Bc of the constant communication I thought he may have liked me until we exchanged instagrams and I found out he had a girlfriend because all of his posts include her (before then he never mentioned her).
Is it normal for my guy friend, who has a girlfriend, to talk to me for a week straight?
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