<human>: So, I posted a [question] about this yesterday asking advice for how I could move forward in a positive co-parenting relationship with my ex after he lied to me, telling me that he loved me and wanted to try to be a family again, so that I would have sex with him. In reality, he probably hadn't broken up with the girlfriend he started dating while I was pregnant with our (now 10 month old) child (or he got back together with her after sleeping with me), he had several other women he was interested in and was perhaps sleeping with and had no intention of trying to be a family again. He just told me that so that I would sleep with him again and after he got what he wanted he told me that he didn't want me to be his primary lover, just a casual thing. He knew I would never consent to casual sex so he worked on us getting back together and made me believe he loved me.

Through the discussion that came out of that question yesterday, I realised that our co-parenting relationship and any friendship we had is damaged beyond repair and what I actually want is to just move on and feel ok in myself again even though I will likely have to deal with him on and off for a long time to come. I feel betrayed, violated, used and devastated. I feel stressed and sad all the time and sick at the very thought of him. What can I do?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: My ex BF convinced me he wanted to be a family again so that he could use me for casual sex. I feel violated and betrayed. How do I feel okay again and move on with my life?