Perhaps it's a translation issue. Here is what I see in Genesis 3:6I just went back and read Genesis 3 again and it does not say Adam was with her, only that she gave him the fruit to eat.
6 So when the woman saw that the tree was good for food, and that it was a delight to the eyes, and that the tree was to be desired to make one wise,[a] she took of its fruit and ate, and she also gave some to her husband who was with her, and he ate. (ESV)
6 When the woman saw that the fruit of the tree was good for food and pleasing to the eye, and also desirable for gaining wisdom, she took some and ate it. She also gave some to her husband, who was with her, and he ate it. (NIV)
6 And when the woman saw that the tree was good for food, and that it was pleasant to the eyes, and a tree to be desired to make one wise, she took of the fruit thereof, and did eat, and gave also unto her husband with her; and he did eat. (AKJV)
Any Biblical scholars out there who can shed light on this phrase?