I was married to my Supervisor for many years. I'm 4D Te and she's 3D Te, she's 4D Si and I'm Si-Polr.
We made a lot of money (Te) and she basically had free rein for decorating the house (Si), and health was her responsibility (Si).
Her father was LSE, so she had some experience living with a Te-dom, and my father was SLI, so I had some experience living with an SLI.
When I met her, and we got married, I was the happiest guy in the world. We were equals in attractiveness, in earning power, in intelligence, in social status, in world view, and in our general attitudes about life. We never argued. We never fought. We almost never disagreed.
However.......
One day, when the kid was a teenager, I came home and there was a moving van in front of the house. She was leaving, and I was clueless. I still loved and admired her, as the Supervisee tends to do.
I have 1D Fi and she has 2D Fi, and our marriage was chilly from the start and sexless very soon thereafter. Mixing Erotic axis' is a huge mistake. (Aggressor/Victim does not cross well to Caregiver/Infantile.) Furthermore, no one was covering the Fi part of the marriage, and with her being my Supervisor, she eventually decided that I was an idiot and she wanted out.
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Shytan, in your case, you have 4D Fi and the SEE has 3D Fi. The SEE is 4D Se and you are Se PoLR. You are both superb at moderating the feelings in a relationship, and this can feel great. Probably it is similar to the feeling I got when I realized that, between my wife and I, we were making more money than we could spend.
This should be fantastic, right? We're both great at something that we both value. However, this is not a balanced relationship.
You have 1D Te and the SEE has 2D Te. This tells you that financial problems are baked into your future. You don't know how to earn money, and the SEE is about 10X better at spending money than they are at earning it. Maybe 100X. Furthermore, the SEE will be able to exert Se over you in order to spend every cent, and there is no way you can counter this. When the Supervisor is around, the Supervisee is ON THEIR TERRITORY.
I can't emphasis that last statement enough. YOU WILL NOT BE ABLE TO INFLUENCE THE SEE WHEN YOU ABSOLUTELY NEED TO DO SO. Supervision is not an equal partnership.
However, I can't tell you what to do. All I can do is to give you the facts, as I have experienced them, and then you can make up your mind from there.