don't tell me, She-rulk is a resurrected, hulked out Betty Ross?
More or less.
Which is now creepy, because we saw Leader flirting with her. But yeah, the part that sells it the conversation she had with Red in Code Red. Rulk told the story of the blind men and the elephant, she told him that the last person to tell her that story was someone she loved who's dead to her.
Here's a good recap of it all.