Is he not interested or playing hard to get?

I started talking to this guy. We were just friends at first and he invited me on a trip with him. After the trip I told him I had a crush on him and he started texting me. We had great conversations for many days over text. He asked to FaceTime. We talked about future trips we are taking together and we talked until the next morning. After we got off the phone I went to work and booked the tickets for our next trip. We talked for a little bit after that.
The next day I thought we would text all day like normal but instead he wished me a good day and then stopped texting me. I texted him late at night with a funny video of me. He laughed and stopped texting me again.
I don’t get why.
Is he not interested or playing hard to get?
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