You DO have something...yourself and your sobriety. He is using, she is using, they are doing what addicts do and there is nothing good in it for you, just more hurt and deception.
Take this lesson as a gift, as hard as that may seem, and maybe get to some meetings and find support to help you get through this.
You were played, that is on them, not you. Now that you know you can grow and move forward because, sweetie, you deserve so much better than this.
I am sorry you are hurting, and hope that you can walk through the pain and take time to see where you might make better choices next time.
Hugs