I’m a little confused about this person?

So recently started talking to this new guy on a dating app. He told me he was looking for something serious, and I told him same. We talked a lot about different things for five days, and he even told me he wanted to call and then see me as soon as possible. When we talked on the phone we ended up taking for a whole hour and a half. He ended the call with “ I’d like to meet you soon and could you send me more pics of yourself?”. So all in all, I assumed that he is interested in me, maybe not in love but at least he likes me enough to meet me in person…..

But then he never texted again. I texted him two days after the phone call, and he never read my message? What happened?

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Also it’s been 6 days since we talked on the phone, and 4 days since I last texted him…..
I’m a little confused about this person?
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