Guy in friends group avoids talking to me?

So I matched a guy on a dating app and we talked a bit. He proposed a drink, I would have loved to and before it happened, he ghosted me. A few weeks later I met him at a mutual friends party. Been seeing him with that friends group every now and than since. Initially I tried to be friendly and joke about the dating app thing and he somewhat responded joking about it too, but than he started avoiding me and now when I see him in the group he literally won’t say anything more than “hi” at the beginning. He sits and stands as far as possible from me and answers in a short and mostly rude way if I try to say anything to him.
Guy in friends group avoids talking to me?
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