She unfollowed and blocked you right after you broke up but she couldn’t block some random dude during your relationship because she didn’t want to be “mean”.
Too Long
Open the chat
Open the snap camera in the chat
Scroll down the control center and tap screen record
Close camera and return to the chat and it should screen record.
(You can take a screenshot from the video if you want)
For iOS
1. Turn off data
2. screenshot the chat
3. Uninstall Snapchat
4. Turn on data
5. Install Snapchat again and continue using
If you’re android,
1. Turn off data
2. screenshot the chat
3. Go to settings and clear app data
4. Turn on data
5. Login to Snapchat and