Backstory: Her and I dated two years ago for about four months. After we broke up we stopped talking. 

Turns out she has been stalking me for the entire two years we’ve been apart. She has me added on Snapchat and has had me on Snapchat for two years. I found this really weird and brought it up to my girlfriend now. She also agreed it was weird. She has previously asked my ex to unadd me on Snapchat and unfollow me on Instagram/Twitter. My ex agreed to do this but never did. 

Fast forward to yesterday and I ended up confronting my ex and her friend about stalking me and keeping tabs on me for years. My ex’s best friend told me I was being narcissistic and an ass for accusing them that they were keeping tabs on me. I talked to my ex for the first time since we broke up and she called me an ass and told me that it’s not weird to have your exes on Snapchat.
Note: I never added her back after we broke up so she appeared under “Other Snapchatters” every time I posted something on my story. 

AITA for confronting my ex and her best friend about them possibly keeping tabs on me? 