I've read many books about early America and the ordeals of the settlers with the Indians. There were some cases of kidnapped White women who went full native and liked it, but they were few in comparison to the number of women who hated every minute of it and couldn't wait to escape or be rescued. Many of them killed themselves.
And the proof is that even today 98% of White Americans have no native blood coursing through their veins according to recent genetic studies.