My crush and I've kissed once a few months back, we spent a lot of time together, but now he texts first and then goes MIA?

I am very confused if he likes me and there's a shot, and if he does why is he hot n cold and texts me first but then stops replying after sometime. pls help me out. he used to talk about us being together as well this was 6 months back, and we used to hold hands and walk all across the campus. now we just talk on n off plan to meet in the campus but he doesn't always follow through. He had even asked me to join him on a concert a few weeks back. His best friends sent me a follow request all together 2 days back, and at the campus my friends have noticed him and his friends looking at me. He once even left his boys and came to meet me when he saw me with my girls. thank you;))

My crush and I've kissed once a few months back, we spent a lot of time together, but now he texts first and then goes MIA?
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