strung out

[strung out] {adj.}, {slang}, {colloquial} 1. Nervous, jittery,jumpy; generally ill because of drug use or withdrawal symptoms.

The only explanation I can think of for Max's behavior is that hemust be strung out.

2. To suffer because of a lack of somethingpreviously accustomed to, such as the love and affection of someone.

Sue is all strung out for Jim; they've just split up.