My husband insists that men can only physically go on with no sex (or masturbation) for a maximum of 3 days. Is this true?

What a classic lie, those sailors or on board of the space station would all most likely die off if that theory is true. I am a man, and I am perfectly OK with my wife not around for a month or so when she is away, and I give excuse to be unfaithful or start jerking myself for that reason too. the only possible reason why he is saying that is either he is cheating bastard who can keep his penis to himself or think all woman are stupid and allowed him to stray. any which way, he is a total jerk and irresponsible sex addict.