I think I grasp what you’re saying. Mary did not give birth to the divine nature, only to the human nature, the two being united at conception (and I assume it follows disunited at the death of the human nature) so that there was one nature, then two natures and finally one nature again but one person throughout.
So was it the PERSON (with two natures) of Jesus that died or just the human nature that died? If it was the latter, what was resurrected? If the former then was BenKenobi correct when he said:
“Yes, God died on the Cross and resurrected on the third day.” (Sun Dec 19 2010 12:33:56 GMT-0500 (Eastern Standard Time) · 886 of 1,416
BenKenobi to count-your-change)
While Christ has a human nature and a divine nature, they are inseperable. You cannot take away the human nature from the divine nature.
So when Christ was on the Cross, he really and truly died. But death, like it is for us, is not the end of existence, he descended into hell, broke open the gates of hell and returned to heaven where he is seated at the right hand of the father.
“(and I assume it follows disunited at the death of the human nature)”
Recall doubting Thomas and the nail marks on Christ’s palm. The two natures are still there with him, human and divine for all eternity.