I know of a couple relationships where I think the man might be ENTP and the woman INFJ, but it could also be ENFP with INFJ or ENTP with INTJ or something. Anyway the one person is super lovely and grounded and quietly academic and the other one is kinda weird and cleverly charming and intense. In both instances, they seem to balance each other out very well. I have noticed some friction, esp in terms of commitments and cleanliness, but it seems like both of those couples have excellent communication dynamics, so they are able to make it work.
But I could also have the types totally wrong too. I know one of the people could potentially be ESTP or ESFP even.
Good thing I am so useful at this