I Am a Single Parent

This is so new to me. Co-parenting bullshit. Trying to rise above our past so that he can have time with our children. Now I'm left with half of the week spent with my kids and the other half worrying how they're doing, if they're okay. While he introduces them to his new girlfriend when I've been out of the house for less than two months.
Tell me again how much you love me and you didn't want this. Tell me again how much I'm hurting you by doing this. Only for me to tell you I'd stay and try a little longer. Only to have you turn around and tell me you f---ing hated me and that wasn't my choice to make.
When we're in front of people you are the victim. When we're alone you're the aggressor. Tell me again how much you loved me.