Judgers enjoy making decisions for the relationship while Perceivers are happy just to let Judgers do so. Perceivers are happy to go with the flow according to the Judger's opinions, and they are generally okay with most casual decisions.
Warm, friendly, and affirmative by nature, ISFJ's are really good at establishing long-lasting bonds with people they are compatible with. Read this post to know more about the ISFJ relationship compatibility with other personality types.
ISTP Relationship Compatibility with Other Personality Types