I agree with everyone here. She had no right to look thru your things and ask you to throw pictures/memories away. It's not like you were displaying them prominently.

From another point of view, I have been one of those snoops who looked thru things...with one fella I dated. But he was extremely secretive and deceptive, and my snooping only confirmed it. Needless to say, I ended the relationship. I'm not proud of this behavior, but some men's behavior promotes insecurity. You don't sound like such a man, and I'm sorry you had to do this.

Other men I've dated have shown me photo albums of their lives which included past wives and girlfriends, and I am not bothered by this. I also have pictures of my ex husband in photo albums. These pics hold no sentimental or romantic value for me, but are part of my past. If a man I was dating asked me to throw them away, I'd see that as a big red flag and show him the door!
Patty