Why?

All he wanted was to fit in. All he needed was that acceptance that seemed to be within everyone’s grasp but his own. The only problem he had was attaining it. There were times he thought he’d reached that pivotal moment, times when he’d believed he had everything he wanted.

It was only a short time before he would realize he had nothing he needed. There was always something missing, a part of him unfulfilled.

Many days he spent in his bed brooding, taking into consideration all he had and trying to discover all he was missing. Why happiness seemed to always elude him, never ensnaring him.

What is wrong with him?