Why does he tell me he loves me but does not want me?

My ex fiancé purposed in May , had been dating long distance for a year. I moved out of state (to live with him) with 2 kids in June, gave up house, job, family to be with him. The kids and I were there for 4 weeks. My youngest and his oldest did not get a long at all. The kids are: mine 11 (g) 10 (g) his 10 (g) 7 (b) . Mine had control issues due to abandonment by her dad. I talked to my ex about how she would handle the move, she does not handle changes well at all. He said we would work through issues that we loved each other and kids would be gone to college in few years and we would have each other, yada yada yada. His girl is also controlling just not as out spoken is mine. His ex wife was not happy we were there, the girls and I were way better than she was. I made it a point to get along with the ex and her new boyfriend. His daughter made it a point to make sure we knew she did not want us there. Long story short after 4 weeks and a huge fight he told us to leave. We never fought until we moved and our fights were about the kids. Now all our stuff is there. I was devastated in beginning and did everything your not to do to get him back. Finally I stopped contacting him them he waits 2 days contacts me. Says he is sorry all that, we talk few days as friends then we fight again. He is going through custody issue and trying to get full custody. Ask me not to contact him while he has kids. I go through this a few more weeks and we get mad again, stop contact he calls me. I am at my Moms, have no money to get our stuff, no job. He sends email tells me what a great person I am but cannot make things work at this time because he is going through custody. I love this man and do not want this to end. Will we get back together or do I just keep no contact and see what happens. I have made no contact for 3 days since email. My daughter did text him that she was mad at him, they had been texting earlier in the week. I am just so lost. My kids do want to go back if things work out, I am trying to find a job and get both girls and I into counseling. I do love him and I am so confused, do you fight for love 300 miles away or do you just say f it and move on. Why send email telling me he loves me and the girls and misses me but has to put his kids first. Please help. Sorry it is so long. It has been 8 weeks since we left