Should i go back?

well i used to go out wit this guy but we broke up. and now he has a gurl and a baby and the last time he talked to me he told me he was unhappy and that he wasnt happy with her and that he still loves me but then he asked to see me...and in the confusion i asked wat me and him were...wat kind of relationship do we had and he said that we will know when we see eachother and from their on we will know wat we are but my dilema is that i still love him and he says she is going to leave soon and that he wants to start over with me but i really feel confused because of his baby but its seems that he dosnt care but yet in another way it seems that he just wants to sleep with me eventhough he sayd he dosnt want me for that.i know that i can decide this by myself but i also need to know what other people think.so plz help me that i really need some advice. do i go back wit him knowin he has a girl and a baby or just let him go for good?