Most Helpful Guy
He had all that time away from you to realize he didn't love you anymore, mainly because you were playing this "work on yourself / need to think" bullshit women always do. It starts to make a guy resent you and now he see's how much better he is without you, the games, the bullshit. He now see's that having you in his life will more than likely cause him more bad than good. He is focusing on his wants now, not yours.
It may suck to hear but chances are he IS happier without you. Women often will get with a guy and slowly strangle the life out of him. Nagging, playing mind games, "testing" him, whining, etc. The saying goes... "no matter how hot she is, some guy is tired of putting up with her shit."