My friend I'm in a similar situation to you, I'm only a bit older, and I realise that though friendship is great, and your ex is friends with her ex, it has to take time. Its been many months since I broke up, and I had the same feelings as you, honest, but only now do I realise that a big big amount of time is necessary. You have not been eliminated from her life, even if it feels like it, but you need to at least accept that, so anything in the future can be accepted as a bonus, and not compared to 'what was'. Good luck.