joy, fulfillment, and an intensity of consciousness we did not know was possible before." -- Rollo May
ISFJs are committed to their relationships. They have very intense feelings, which is not immediately apparent to others because they tend to hold things inside themselves without expressing them, unless they have a strong reason to do so. Their intensity of feeling makes their intimate relationship their first priority in life, with the possible exception of God. They seek monogamous, lifelong commitments, and can be depended upon to be faithful and loyal to their mates once they have made a commitment.
ISFJs have a difficult time leaving a relationship which is bad, or accepting that a relationship is over. They tend to put all of the blame on their own shoulders, and wonder what they should have done to make things work out. If they have been loyal to their vows and have done their duties, they will be at a complete loss as to what went wrong, and will have great difficulty accepting the end. They are "true blue" lovers, and may even remain faithful to their deceased partners.
ISFJs tend to be very selfless, and to put the needs of others well before their own needs. This may backfire on them, if they get into a situation in which they are taken advantage of, and do not have a good outlet for their strong emotions. In this kind of situation, the ISFJ might bottle up their feelings inside them, and form strong resentments against others. The ISFJ should work on recognizing their own needs, and place some importance on meeting them, rather than always putting the needs of others first. After all, if you can't take care of yourself, how can take care of someone else?
Sexually, the ISFJ sees intimacy as a tangible way of strengthening their relationship bonds. They also see as something of a duty, and are likely to be more interested in serving their partner than in their own personal satisfaction. Although the ISFJ is not likely to be very wordy about expressing their love and affection, they're likely to do so through their deeds, and will deeply value their partner's responding affirmations.
The ISFJ is very warm and selfless. They'll put forth tremendous amounts of energy and time into doing what they feel is ther duty. What makes them feel best about themselves is when others show them their appreciation of the ISFJ. Consequently, the best gift that the partner of an ISFJ can give them is the expression of their love and appreciation.
ISFJs have difficulty with conflict situations, and would much prefer to just sweep things under the rug. Sometimes facing a conflict situation helps to resolve it, and the ISFJ should realize that the world will not end if they face the conflict, and express how they feel about it. A conflict situation is not necessarily a "problem" which needs to be gotten rid of, and it is also not necessarily the ISFJ's fault. It's a common problem for ISFJ's to not express their feelings until pushed to some limit, after which they explode in anger and say things which they later feel they shouldn't have said. These kinds of outbursts can be reduced by expressing their feelings on a more regular basis, rather than keeping them pent up inside.
In general, the ISFJ is usually a traditional, family-minded individual who places the comfort of their mates and families as their first priority in life. They're great for providing for everyday basic needs, and have a depth of caring which is very unusual, and not found in most types. They highly invested in the health of their relationships, and will work very hard to make things run smoothly. They are dependable and affectionate lovers.
Although two well-developed individuals of any type can enjoy a healthy relationship, the ISFJ's natural partner is the ESTP, or the ESFP. ISFJ's dominant function of Introverted Sensing is best matched with a partner whose dominant function is Extraverted Sensing. How did we arrive at this?