Is it lack of interest or not a texter?

I've been seeing a guy for about a month. He hates texting and always takes almost a day to text back or several hours. He also rarely initiates unless there is a specific reason. I became sick of this and decided to just call him one day - change the medium. He didn't answer, but called me right back to tell me he didn't have time to chat, but said he would call me later if he was able. I know he is visiting his family for the holidays, but I have not heard from him since. I have not initiated any conversation (since I called). He is active on social media, both posting and liking my stories. I guess, I'm not sure if there is interest or if this is just the bare minimum?

Is it lack of interest or not a texter?
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