What to do when guy pulling away?

What to do when guy pulling away?
I took a liking on this guy and he said he liked me as well. We hung out and he even told me I’m the only girl he’s talking and seeing so often. We kept a steady and constant texting, in which he said he wanted me, miss me and all about compromising our hobbies so we can spend more time together. But then I felt he pulling away shortly after. I’m so confused, I confront him about it and he said he wants to slow down because he thinks he’s moving too fast. I don't know if I believe that or there’s another girl he’s interested in so he “benched” me. This was his last text, I never respond or text him ever since and I never hear anything from him. Should I forget him or wait? And what is up with the games?
What to do when guy pulling away?
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