Sforno on Genesis 16:8/ספורנו על בראשית ט״ז:ח׳

1?אי מזה באת ואנה תלכי, the angel wanted Hagar to realise what kind of an unprofitable exchange she was about to make if she left the house of a man such as Avram and traded that holy environment in the land of Canaan, preferring the spiritually contaminated regions outside the Holy Land and the evil people residing there.

2 אנכי בורחת, "I am not going to a place I have chosen myself; I am simply escaping intolerable conditions."