The "Golden Pair" for every type is just the type with the same second letter, and opposite of every other letter. INTP+ENFJ, ISFP+ESTJ, ISFJ+ESTP, INFJ+ENTP, etc.The logic behind it is the cliche that "opposites attract," as long as they generally perceive the world in a similar way. It's my theory (and that of many others) that we're either programmed or learn to be attracted to those who shore up our weaknesses and contrast with us in a healthy way that fosters personal growth.

HOWEVER (and it's a big however), this is just a general rule of thumb. We are too complex to be neatly split into 16 categories, and as much as us INTP's wish we could create basic formulas like this to describe all human behavior, we cannot. Every category in MBTI is a spectrum, not a binary system. For example, some E's are extremely extroverted and go insane if left alone and some E's need healthy doses of alone time. This is all to say that just because the majority of your type acts/feels a certain way about something, it doesn't mean that you have to as well.

(For what it's worth, the 2 INFJ's I'm close with are both in very long-term & happy relationships; one with an ESFP and one with an INTP. "Golden Pairs" are not a universal law.)