>>212587092 (OP)You do, of course, realize that this backward canonicity was inserted by Cameron to make it so that the titular Alien (the penis-skeleton rape-metaphor) seemingly wantonly killing every crew member EXCEPT FOR RIPLEY a part of its breeding cycle. That is to say, it instinctually killed all the males on the ship and, at the end, when it was just chillin' in the wall of her escape craft, and not leaping out to kill her, was not the product of some kind of theretofore undescribed fatigue, but rather it was then beginning its courtship. Attempting to acclimate to her.
Notice how in that final scene the alien is acting more like a submissive animal than a killing machine? Yeah, it wanted her V.