In the end, its totally up to you to decide what the best move is. If you think it would be less upsetting for them to hear it from you, or if youre sure that youve both moved on and just want to let them know whats going on in your life as you would with any other close friend, then go for it.

Should you tell your ex that youre seeing someone else?

Telling your ex that you are seeing someone else is not a must. However, if there are still feeling left either in your part or on his end. There are Dangers And Boundaries For being Friends With An Ex.