Advice needed (ghosting)?

Hi, so I just met a guy while playing an online game. His friend was also in the game, so they both added me on Instagram. I was only interested in him, so I just started messaging him. We've messaged for about 3 days, then we decided to talk on Discord for the first time. It lasted 3 hours and we had a great conversation together. Everything was so funny... When he went to sleep, I wrote him that it was pretty fun that evening. Next morning, we said each other "Good morning". I asked him if he'd like to bake during FaceTime, he told me that he has no time. Then, ignored all my messages. I still said "Good night" to him. Next morning, he told me "Good morning", so I asked how he was and he hasn't responded since. However, he has been active on Discord... I don't know what caused this, maybe there isn't any reasons. I also asked his friend how he was doing since he hasn't responded me much, he hasn't answered yet either...

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Plus, they both continue to follow me...
Advice needed (ghosting)?
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