Can a symptom of bipolar disorder be cheating without regret?

Part of manic phase.: A symptom like that can accompany the bravado of the manic phase of bipolar disorder.

Bipolar: Bipolar disorder, most notably during manic stages can manifest itself with a great deal of sexual acting out, typically followed by regret after the mania ebbs into depression. As expressed here, cheating without regret may indicate a personality disorder, such as antisocial or narcissistic.

Need more info.: Depends on the timing, severity and pattern of the behavior. Impulsivity and sexual promiscuity can be part of hypomania or mania. Could be due to a drug problem or many other reasons. Must put behavior into a context, ie, what's going on in a person's life. Please be more specific about "cheating without regret" and resubmit for a better response. Take care.