I think my ex is seeing someone new too soon
Why are you holding on to the past about your ex?
Because they can move on much faster than me.
Just because you can't seem to move on, doesn't give you the right to track your gf's dating circle. Stay out of her business.
I bet she would feel bad if she knew how much this impacted me.
No she wouldn't. She's living her own life and has obviously moved on from you like you should from her.