Alpha relations of Activity: INTj - ISFp and ESFj - ENTp
Ever been in one of these relationships (ENTP+ESFJ / INTJ+ISFP)? If so, what was it like?
Since it's an intraquadra relation, there is a great level of understanding. But both parties being Negativist and introverted (and probably the opposites too) puts a big strain on the relationship.
It depends what you want from the relationship. If fun, understanding, usually great sex, lot's of action, but not deeply spiritual connection, then it's great. It's a moving relationship. You two will be doing something together all the time. And the enthusiams and 'heaven' may even exhaust you. So you should find a time to make a break. And then the fun continues.
Activity relations are good for a wild romantic adventure. And they give you lot's of energy. So they are helpfull from geting over from a down period in your life.
Duality is calm and relaxed. It's good for setteling down and planing a family. You'll be feeling cozy, but inactive. Great for adulthood, but may be boring for you when you're younger. Besides, duals don't all the time get along. The fights are awfull. Painfull. And you can't change the person. Duality sucseeds when your strongs sides have developed out well.
For an intuive, the best match for platonic love are semiduals and illusionairys (probably semiduals for INTj and illusionarys for ENTps).