My husband is an ISTJ and I really appreciated reading everyone's experiences with this type. We are currently separated, but living in the same house, and over time I've reached the same conclusions some of you have mentioned in your own ISTJ relationships: A stable, but not satisfying match. I was initially drawn to my husband's consistency, support and stability, as we both favor purposeful, long-term relationships. He's an all around "good guy", great leader, honors his word, would give you the shirt off his back, and is highly intelligent and focused. I tend to vacillate among choices and wrestle with ethical or principle concerns, so his no-fuss attitude soothed and centered me. Plus, I admired his commitment. He steadfastly accomplished any task before him, and it only helped that he loves romantic movies, music (a paradox to his personality) and is multilingual, sexy and a great kisser. Also, growing up in an unstable home, I couldn't count on my own family but I could count on him. He was my rock. He's also very aesthetically conscious, and unlike the stereotypical man, is very clean, organized, always smells good, is classy and a great cook! What woman wouldn't love that?
Despite the pluses, we had major problems that I couldn't go on smoothing over. Of course, he had his issues with me, such as how messy, "unrealistic", and optimistic I tend to be, but in general, he would have been content to continue with the relationship as it was. For me, his lack of affection, expression, communication, appreciation, his passive-aggressive attitude, pessimism, and materialism really bothered me. I craved active participation in creating a life together, enthusiasm, romance, transparency with our personal matters (ex. finances), and variety! He didn't value my passion for travel and experiencing new environments. Though he offered obligatory support, he much preferred I stay put and tend to him and the house (and later, the kids, him and the house). He didn't understand my need for personal and relationship growth; he wanted no more than a loyal wife, dedicated mother, and an upstanding woman who would play her part. In fact, when I asked him why he loved me, he said "Because you're a good woman." I was always baffled and saddened by this response until I understood its significance years later. In essence, as renowned type researcher and psychologist Dr. Keirsey states: ISTJ Guardians want a "helper mate" not a soul mate, like the INFJ Idealist.
Indeed, he was more interested in me being a domestic goddess and focusing on practical matters such as holding a stable job, earning a good income, raising respectful children, and honoring him as head of household. But was easily frustrated by my "Follow Your Bliss" motto of life. He didn't understand why I have to be happy in everything I do. "Work is work" he says, not "a purposeful and engaging contribution" in the world, as I believe. Because of this and many other similar "utility vs. possibility" (SJ vs. NF) situations, I suffered from loneliness and alienation. I also felt disrespected when trying to have a conversation with him about the days goings-ons, myself or our relationship. He'd just sit staring and typing away at his computer-not once acknowledging my presence-and was adept at bottling his emotions, often to the point of austerity or sometimes a blowout of rage. It was maddening. Ironically, he's great with people and very adaptable to any social situation. My judgmental family loves him and those who don't know the "flipside" of his type think he's the kindest person ever.
Forgive me for writing a book, but I hope this post helps clarify matters with other INFJ/ISTJ matches. Though type is just a component of one's overall makeup, it powerfully and accurately explains (80%+) how each views the world and functions within it; and in relationships, how we interact with each other. We are all shaped by our experiences, beliefs, culture etc. and no one relationship is indubitably well- or ill-suited based on type alone. However, in the case of the ISTJ match, I find that the lack of depth/communication, affection and growth/variety made my relationship stable and comfortable, but lacking in the meaningful, in fact incorporeal, connection I need. For him, the novelty-seeking, affirmation-needing, and purpose-craving nature of my INFJ type was exhausting, frustrating (possibly offensive?), and baffling to him. We had a thoughtful discussion today (maybe 2 in nearly 8 years hehe) and he said he still loves me, but that we just desire a different connection. I couldn't have said it better myself, and I love him for the insight.