Did he lose interest in me?

We went from having actual conversations with a full sentence, to now sending one worded like “yup”, “ok”, and these responses mainly are from him where he also asks wyd” and doesn’t text me back as quickly anymore. He says “wyd” so much especially when he comes back after a few hours of not texting and goes away again. Has he lost interest, or is tired of me? We’ve talked for months.
Did he lose interest in me?
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