I am manic depressive and i need help..?

Please someone give me understanding. I was with a guy for a while and we have a 2 year old son together. Me and my mood swings..but anyway he says he is done with me and if he really in fact is that is okay..i understand. I wish i could make him understand why i ensure the very thing i fear which is abandonment. I am saw a counselor and I am going to continue seeing her weekly from now on. I just need help..someone answer?