Had a look at intertype relationships between my best friend and me. Apparently, it is something like this:
"Asymmetric relationship. One partner (the recipient) feels like he is being watched closely by the other (the transmitter) and becomes overly self-conscious and defensive or apologetic. The transmitter doesn't appreciate most of what the recipient does and underestimates his abilities and personal qualities, which hurts the recipient's self-esteem and can lead to long-lasting scars. The transmitter is surprised by the recipient's sensitivity and doesn't know what to do about it. The recipient feels like he can't take any initiative when he is around the transmitter, who wonders why the recipient doesn't do anything on his own. Difficult relations for a close or medium psychological distance."
This is inaccurate. However, both the functions and type descriptions of ESTp would seem to accurately describe me and my friend is definitely an INTj.
To what extent should intertype relationships be used as a theory to show that, for example, I am or am not a certain type?