Was he trying to make me jealous? or has he moved on?

so me and this kid andy beame really great friends. hes a huge flirt, but all my friends umed he liked me, like hwenever in a group we were always together, always followedme, stayed by my side. and he would alays ome up to me and if not paying attention sort of flick my chin , like that was his thing to me, and hten for the past few weeks he has become disant such as ignroing me on and off. and today he flicked another girls chin in front of me. then me and my friend were talking and he comes and hugs her, and just ignores me. why?? has he moved on