A new category called PITA sometimes known PITB. Actually an ISXP. The Pig in Perseus Modern Animism. Very common type. Sometimes called a male chauvinist ISXP (although it occurs almost as often in females). If he cannot be chauvinist he gets depressed. Don't expect Pigs to fly properly: flapping is all you get.
Tip to Others "Don't be a Piggy in the Middle". You will get into a pickle.
This means that the wife (ESTP) embarks on an affair in the erronous attempt to get the Piggy to pay attention to his responsibilities and making sure the sty in clean and he is not rolling about in the dirt. It is not a proper affair and the third party gets into a pickle. When the shock wears off the Piggy returns to type.
One thing is certain: unfaithfulness will not be a problem for you (INTPs get into this trouble a lot because that are not touchy-feely and the partner is missing something physical. Goats ESFJ variant are the worst for this.) and this way out is not available.
PS: There is no such thing as a perfect partner.