I think she asked you because of the correlation between your statement about hitting yourself and the visible sign of bruising--so, more like confirmation, rather than a shaming. I don't self harm, but if walked in with a big bruise and said I had been hit, I think my therapist would definitely clarify if that bruise was where it happened. If I had covered it with jewelry, maybe not so much.

And yes, I think they look at a lot without being obvious.

But I don't think there was any kind of gotcha going on. I mean, you brought it up two different ways--verbally and visually. Maybe she was taking a cue from you? Not saying anything seems kind of careless or cold, I think.