Confused about ex-boyfriend

Hi. Last April me and my boyfriend broke up. and after some time of not speaking we started communicating again and after a while of just casual friendly talk, he started telling me he miss me and he loves me and i'm cute and he even called me boo. and i know that I still love him, but when i asked if there was ever a possibility of us dating again he said no. Yet when i tried to tell him i couldn't be just friends he told me I wasn't leaving him but now after i have built up the strength to stay he'll talk a little but it'll go a whole day and he won't say anything but he said he wants me in his life. I'm so confused i'm losing sleep and crying, is any of this signs that he might actually consider wanting me back or is something else happening?