No longer interested?

I have been dating a guy for 3 months and we have gone out a few times. We have had constant contact with day either through text or calls. I talked with him earlier today, but at around 5pm, no more communication. I texted him a couple of times only not saying anything crazy. Still no response..
does that mean he has lost interest? what should i do, move on or give it time?
No longer interested?
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