I don’t feel unsafe much, and the things that do make me feel unsafe, he has no control over. Unless he can punch my immune system into submission, haha.
But yes, he does make me feel safe when we walk off campus. My campus is in a city and not the nicest city, either. There are gangs nearby. Campus is generally safe, but I feel nervous off campus. I feel significantly less nervous with him (or any big guy, really). I am currently taking a class to learn to defend myself, but I still never want to be in that situation, and because of my very shrimpy appearance I know I am at higher risk of being a target.
I go off campus to drink, so I appreciate how safe he makes me feel when we walk home. I would never walk off campus at night (and especially impaired) without someone I highly trust.