We're good at a lot of things, but personal relationships aren't one... "Personal relationships, particularly romantic ones, can be the INTJ's Achilles heel. While they are capable of caring deeply for others (usually a select few), and are willing to spend a great deal of time and effort on a relationship, the knowledge and self-confidence that make them so successful in other areas can suddenly abandon or mislead them in interpersonal situations." INTJ Profile
You guys have to remember that the Myers-Briggs Test is simply a tool so you can better understand how you interact with people. It doesn't tell you who you are, your destiny or what you can or cannot do. I'm an INT P/J (about 52% p so it changes) and I can tell you that is completely possible to have a good relationship. I recently started going out with my boyfriend and he is the sweetest guy. Please don't treat the test like a zodiac sign. It defeats the main purpose of it and it doesn't allow you to grow as a person. Challenge yourself and believe that you can do things.
We talked a lot about this text in my queer studies class (INFP here). The only real significance to relationships we had discussed was that it can be difficult for a P and a J to be in a relationship (something I'm currently involved in lol) since J's are very organized and timely and P's, like me, are... well not so much. I don't like to live life on a schedule.