4. They Become Competitive
When the relationship is over, the struggle to let the other partner know they are doing well on social media starts.
Both parties would to the ends of the world all in the bid to make the other know that they are well, able and happy.
Is your ex trying to make you jealous? Do they post pictures on Facebook specifically to push your buttons? Are they going out of their way so that you know that they are dating someone new?
Do they become extra flirtatious with other people when you are around? Then congratulations, your ex is probably still in love with you (aside from being a little immature).