Rape can happen without assault, though - I know someone to whom such a rape happened, and she found it very traumatic, to the point where it still affects her life decades later.

There are also apparently other things that can evoke the same kind of traumatized reaction without involving physical contact at all; Eliezer gave 'having nude photos posted online against your will' as an example. (I mentioned that example in a discussion with the aforementioned friend, and she agreed with Eliezer that it'd be similarly traumatic, in both type and degree, for whatever one data-point might be worth.)