MAJOR problem, please help?

I just broke up with my boyfriend of a year... im devastated. Basically I was having some trust issues with him and some other little stuff but he over all been a good boy. However, I don't know how I didn't see it, but I have definitely been a big pain in his *** lately and being kinda paranoid abut stuff, but he hasn't exactly been the greatest guy ever either. Anyways, right now we are not together but we were talking about possibly trying to work things out..well I am, I don't know about him to much. ANYWAYS, my question is, does anyone have any experience on getting back with there ex and things getting better and go back to the way they kinda were before? I don't want to waste my time trying to get back with him if there is no hope. After I get with him, we will BOTH have to try hard to get things back to normal and find the true love again... im willing again, just don't know if he is. I think it will take a little while if we even got back together. Like a week?? Thanks what I was thinking. I still don't know if he really wants to be with me or not because one minute he says he wants to and the next minute says he doesn't. I dont know what to do and I dont want to force him to be with me cuz thats just awful but is there any chance, if we do get back together, that things will be better again. I would have to work on some stuff but any experience on this type of thing would be greatly appreciate it. Please, no negative comments... thats the last thing I need right now!!! Thanks