Ex gf contacts me after 1 month of no contact

After a month of not contacting my ex gf she decides to follow me on Instagram.After that happened I decided to text her why she followed me her response was that she hit the follow all contacts button but I mean she could've avoided following why does she even have me on her contacts in the first place she still has our pictures on every social media site I'm really confused and it's been a about 2 months since she broke up with me.What can all of this mean?

Honestly, i have been in this situation and i was going crazy to find answers but at the end i just found out that my ex just wanted to follow me because he wanted me to follow back for more followers and also to make it look like he moved on. To make him seem like he is the bigger person, and the fact that she still has your number is a wonder but i still have all my exs numbers not because i miss them or i want them back but i just dont want to delete it in case i need them for something.

You need to tell her to take the pictures down and the delete her from social media. She ended it, she does not get to keep your pictures up and follow you. You need to pull some dignity together and break the contact.