Should I block her?

I recently had a falling out with a friend and once a week or so, she will take screenshots of stuff. It's on snapchat so it tells me when she does but it doesn't actually say what and we have quite a bit of conversation saved over the years. She has accumulated probably close to 50 or so screenshots and she always comes up with little excuses that she just wanted whatever funny things she said but tbh, our conversations were never very funny. I have some rather private stuff saved because she was my best friend at some point and I'm just wondering if I should delete it, which she can see, or just block her and forget about it. It's been almost two months since we quit being friends and this just feels like those 'pokes' you can do on Facebook to get someones attention without actually messaging them.
Should I block her?
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