If he has a new GF he has moved on. He is your ex.. even if he is too weak to just come out and say it. He has moved on. He keeps you on the hook because it is what addicts do.
If you want to be strong in body, you execise. The same thing with recovery. If you want to be strong you choose to be so and work your recovery.
YOu make this choice the same as he made the choice to find a new GF or use drugs.
You can choose to be strong and choose recovery and work it, or you can continue obsess about and to use your DOC.. you X ABF.
(It WORKS if you work it, so work it your worth it)