One thing that has changed for my girlfriend and her daughter is that now the doors are locked and deadbolted when IN the house. Intantaneuos life change.
Basswipe....same thing here a week and a half ago we noticed someone tried prying our door open. Not sure when it happened though...if we were home or not. Weird thing is (and I hate to admit it) but there were many ways they could have gotten in and didnt. which makes me think they got scared off in the middle of it all somehow.
Now...my 380 by the bed at night and deadbolts always locked. new and better lighting around the house.
The most important part though was for a coup[le days I was flipping out...couldnt sleep afraid to be home alone....afraid to come and go at night, etc. I finally convinced myself that they HAD gotten in. They got inside my head and I was afraid to be in my own home. I told myself to let it go because you cant live your life in fear!
Best of luck to your girlfriend and glad no one was hurt