He believes that the lord imprisoned his wife in an oak tree after being pressured to do so by his kinsmen.
However, this simple meaning is contradictory to two sections of the poem: the Wife’s description of her grief, and her speculation of her husband’s exile. Greenfield also does not espouse the commonly-held belief that the Wife is expressing pity for her husband, who is in the shares that ultimately, her lord requested her to live with him in a new country. She moved to this strange place where she had no friends, which made her sad and lonely.
Also, she quickly discovered that her husband had been plotting behind her