Is it bad to explain that to her?
Most Helpful Girl
Doing it is reasonable, explaining it would depend on how you put it into words I'm guessing.
Most Helpful Guy
It's not unreasonable. If you feel hurt and upset following her, then don't follow her. It's certainly better than risking becoming obsessive over her to the point you start to resent anyone who gets the attention you wish you could get from her.
As for whether or not it's bad to explain it to her,, I'd not explain anything to her unless she asks.