Maybe this isn't the time to challenge your thinking, but broad strokes about therapy and how it benefits me have been on my mind. You say the "human mind," but there isn't any real evidence this is true outside yourself. In fact many people, including those who have stated such on this board, find it easier to confide and be emotionally intimate with a therapist than with people in real life. Because you don't have to take care of them hearing about your struggles, unlike a therapist. Because the therapist is bound by confidentiality, and many friends and family members aren't even when you ask. And if just intimacy and expressing it were the issue, everyone with a partner, like you, wouldn't need therapy or find it useful.

I've had the experience most of my life where strangers and others tell me things they wouldn't tell their own partners. On an airplane, in the grocery store line, waiting for a public event, in the waiting room of my therapist's office, etc etc. Often I hear "I've never told anyone this before." Some of this is my field of work, violence against women and children, and when people hear this, they sometimes tell me about their molestations and other forms of family violence. But this has happened as long as I can remember, strangers or near strangers confiding in me, and I know other people have the same experience. Perhaps the human mind is more oriented towards intimate connection than you believe, and research by Pennebaker (who has demonstrated that journaling as well as oral confiding in people besides therapists is positive for one's mental health. It's quite possible this difficulty you identify exists inside your own mind.

It's possible to theorize and split hairs about the differences between the therapy "bond" and a "normal" bond and use it to defend against dealing with one's issues in therapy. And surely the parental "bond" is different than the "partner" bond but that doesn't mean each one isn't exactly what you need.

If you consider the possibility that the way you are constructing therapy or your therapy and raise it as something to work on, this might be interesting ground to explore. If you take therapy and the therapist out of the equation, one question is why is it so difficult for me to be intimate?

Assuming you want it to be different; perhaps this is working for you in just the way you want. Anything about you is changeable; anything about "therapy" is not. While I am quite aware that therapy isn't for everyone and there's nothing wrong with choosing to not deal with any issues you don't want to, doing so with deliberate intention rather than relying on some trumped up fact about therapy that isn't the case seems like a better path. IMO. And IME, as I've never benefited from avoiding issues or seeing things for other than what they are. Sometimes it is very difficult to confront the fact that I'm wrong, which happens quite a bit inside and outside of therapy. Especially when giving up my cherished beliefs requires me to work on myself.