Conjunx Endura

Also when are you going to take out the trash?

A Conjunx Endura is a Transformer's significant other, an individual that they deeply love. In human terms, Conjunx Endurae are the equivalent of spouses; for example, when the life of a Transformer is threatened to the point of unconsciousness, it falls upon their Conjunx Endura to make medical decisions on their behalf.

Some Transformers think close relationships like these are embarrassing.

“	I've always been terrified that you'd die before I did, because you and me apart strikes me as intensely wrong.	”
—Part of Rewind's final message to his Conjunx Endura.

Fiction

IDW Generation 1 continuity

Few Transformers have more than one Conjunx Endura in their lifespan, and many don't even have one. Chromedome was an exception, falling deep each time, but part of that may have been because after being bereaved, he made innermost energon offerings and stuck his mnemosurgery needles in his neck over Brainstorm's objections, to remove all memory of Scattergun, Mach and Pivot in turn, forgetting the pain of their loss before falling in love with the next. The Gloaming

By the time he fell for Rewind Before & After, he had no innermost energon left, and from his own mindwipes believed he had been "born dry". When Rewind himself died, he planned to remove the memory again over Brainstorm's by-now ritual objections, but a recorded message from Rewind made him hesitate and retract the needles. The Gloaming