DUMB SCENES

Okay, this wasn't a great movie but interesting enough to kill a couple of hours plus I wanted to see how it ends. Couple of really stupid scenes besides the one where she leaves her important documents behind. When she's in her new town and thinks she has seen her ex, when visiting a friend at a store, then she comes home, sees the window next to her door smashed, goes in grabs a knife (holds it stupidly straight up towards her own neck) dumb dumb dumb, then still decides to take a shower???? Has this woman not seen Psycho????LOL!!!!