"Everything" is a massive stretch. INFJ's are extraordinarily loyal, but that loyalty also applies to themselves. If someone isn't good for an INFJ, that person won't remain in the INFJ's life for long. My response: "This is why I'm so awkward.
*pouting* Not cold and calculating, I think my heritage Irish/Italian put the Kibosh on that. I can read people very easily and know when my warmth and generally happy disposition will be received well. Otherwise, yes I can appear cold.