Reply To: Proper Etiquette or Against Halacha?

There is a Halacha that a man should not walk behind a woman. There is no Halacha that he should not open the door for you. I would check his middos carefully with his roommates and close friends. If he is mentchlich with them I would not be too concerned about the car door. If he is somewhat self centered you may need to think hard about whether he is worth your while. Hatzlacha!