Why is he ignoring me?

It’s been a week he’s not responded to my message asking if he’s ok. I’m not blocked because I have 2 grey ticks. I don’t understand why he would do this it’s not like we had an argument or anything. He’s always been very responsive but it doesn’t look like he’s using WhatsApp as he’s never online anymore. His privacy settings have always been private but I used to see him online all the time until about a week ago.
Why is he ignoring me?
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