Will i ever get over him?

Myself and my ex partner have been seperated for 3 months now, we have 2 daughters together - our eldest is 15 months and we have a 8 day old baby. He was my first proper boyfriend, I lost my virginity to him, he was my longest relationship and he meant the world to me. And he still does. He walked out on me and our daughter when I was 6 1/2 months pregnant, i wasnt even aware there was a problem, he broke my heart, was in the wrong and I was more than willing to try and fix things - i paid for counselling and some other things to, to try and rekindle our relationship. Fast forwarding, we've been seperated for over 4 months, and I still find myself crying historically wondering why things went wrong, why he doesnt love me when I still love him, what I done so wrong, why didnt I just leave him to do what he wanted, the list goes on. I just cant seem to let those feelings go. Each time I start to feel like I'm slowly coming back together he'll tell my family and me he still loves me and isnt sure if we'll ever get back together in the next breath he'll be denying it and saying he doesnt want a relationship with me..... I just wish I could make him feel how I feel, maybe then he'd love me again? I just want to know how long its going to take me to get over him........m