I think I've only ever encountered two rationals in my life. I don't generally fall out with people but I would say these have been my two biggest fall outs with people in my life and they've both been very bad experiences. I am a peacemaker type and conflict on any scale is extremely destructive to me.
I don't wish to go into detail about what happened. I'd just like to know how rationals view INFJs. What are your experiences with them?
As an INFJ with a fairly well-developed Ti, I can give you some perspective on the matter from my experiences with rational NTs.
Overall, my experiences with them have been deeply satisfying on an intellectual level, as well as emotional; the latter fulfilled only after I'd begun to explore MBTI indepth.
Because of our differences, we often had misunderstandings, that lead to hurt feelings on my part; taking offense to certain ways they expressed views/addressed issues. This was only further compounded by their seemingly nonexistant emotional responses to my "hurt feelings." ...which caused me to jump to the conclusion that they "just didn't care."
Once I began exploring MBTI, I began to understand that they simply processed/expressed their thoughts/feelings in a different way. They weren't unfeeling. Just different. My relationships greatly improved. As an INFJ I need constant growth; to understand others, and be understood. Certainly a "peacemaker's" way, as you put it.
My last INTJ boyfriend (we're still very close friends) appreciated that I was one of the few people who didn't think he was an "arrogant, heartless asshole." He was just extremely rational. I really valued that aspect of his personality, though I couldn't put it into practice myself. Generally speaking, I found his consistent logic incredibly constructive.
He is an extreme T.. and seems to have little patience for people who overall seem to allow their emotions to drive them. It's begun to rub off on me a little, though I interact/handle situations with those kinds of people in a more overtly empathetic way than he does. I can't say this applies to all INTJs, but he would roll his eyes and call people who were ruled by their feelings "irrational," while I'd roll my eyes, and say "unhealthy," and then probably go try to help them process/cope/find a solution.
He always helped ground me and brought a practical approach to achieving my goals/solving problems.
My closest friend is an INTP. She loves that I don't view her as "too aloof/detached/emotionally retarded." She's my objective scientist. The world is her petri dish. She likes that I don't think that her constant exploration of all possibilities is a "neurotic, hairsplitting" trait. She's just an analytical Perceiver. We can talk for hours about everything and nothing. Ideas.
It's a beautiful thing.
Overall, as long as any Feeling type realizes they don't have to specifically relate to something [emotionally] to appreciate/"get it" on some level, then I believe you'll all have much more fulfilling & positive experiences/relationships with those NTs.