What the hell is going on?does he not want me or does he have a new girl?

First , cut of your hyper, be cool and deal him with ease, keep in touch , but dont pose him any commitments, just talk casually, keep talking, every time he cant talk sweet, but keep noticing, if he speaks with interest on some point, that particular time, hang the phone saying you got some work or just tell him u r getting a second call, avoid him in two or three times in different mode, just see his reaction, u can judge perfectly, but create situations where he should feel indirectly that u are not running behind him, good luck