.exe-partners

Personalities supervene upon at least the central nervous system and probably the whole body or more. In other words, the body is the hardware, the personality is the software. However, when one is in love, one sees the other person as a beautiful soul and wants to relate to them in the fullest sense - they are one's significant other. Time passes, and the spell fades away. Increasingly, one sees the faults in the other person as one gets to know them. Eventually, if it goes sufficiently badly, one is able to predict everything they are able to do and no longer has empathy. The relationship becomes formulaic and stale. At this point, it is to be hoped, the relationship ends. Also at this point, it would be possible, given one's intimate knowledge of the other, it seems possible, in formal language, to write a complete description of how they behave in any circumstances, which could be written as a program simulating their behaviour, given the right compiler and hardware - basically an android. They have become, in Windows terminology, a .exe - partner. You can see through them.

The relationship has ended and they go their separate ways. The personae they have ended up adopting are dropped and maybe they get together with other people. Their personality is no longer predictable because they grow and change. Hence their operating system is now running a new .exe, but their new squeeze is not yet aware of it. They have yet to become a new .exe-partner.