Actions tell the story more so than words. Just keep doing what you are doing and his actions will tell you whether or not he is worth your time.
His actions are already telling you that he's not into you. He's keeping you hooked until you're desperate and then he'll easily play you right into bed out of desperation of not winning him over (by playing hard to get).
His action are clearly telling you that he's not as into you as you'd hoped he'd be and if he's used to being with many partners then he's not worried about losing you because they are many more where you came from.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion