happiness and contentment

do happiness and contentment go in pairs?

can you be happy, but discontented?
can you be unhappy, but contented?

are they mutually exclusive?

hmm.

seems not. i think i'm happy now, but discontented. i want more. but this discontentment doesnt make me sad. it just spurs me to work harder. in fact i look forward to the future, because i look forward to fulfilling this discontentment in future.

am i talking in circles?