how can someone say I love you when they hurt you so bad.

I am 19 years old. I have a 6 week old daughter. I was with a man that I loved so much that I give him everything and he said he loved me to. We were going to get married and live happy ever after. We were toghter for almost 3 years off and on again. He never was the guy that  I thought he was. He did drugs and cheated on me when he could. I loved him for who he was and not what he was becoming. He always told me what I can and can't do and who should be my friends and not. I lost so many freinds because of him. I still said to myself that this is what I desvier(sp) I never thought that I need someone eles. He was my one and only love. I never wanted to hurt him but he always hurt me. It took me to see him cheating on me to realize that he was not the man I loved.  I end it because I don't want my daught to have to live with what her father is. I call him a father because anyone can be a father but not everyone can be a dad. I wish that I listion to all the people around me about him. He took so much out of me that I never thought that I could get back. I just want people to know that the person you are dating could be a whole different person then what you see. Don't get me wrong I am happy for being with him at the time that I thought that is what I need but now I know that is not true. No one needs a guy that sits there and calls you names and tells you what to do and throw stuff at you.  I am living now like I have not lived in 3 years. I am now alive and not just someone letting someone eles run my life. I will never go backto that man because he is not what I love and he would never be that person again. I would not if I could change anything in my past. I love having my daughter and I am so glad that I leaft him and moving on with my life. Yes it is hard for me to do that. I see my daughter and all I want is her to have the best life in the world and to have never to deal with what I dealed with her father. I am now see him for the real him. I want people to know that you should just not only listion to your heart but you mind and body and friends and  family. I almost lost everything I had because of him. My family got hurt so badly because they saw what I was going through and all they wanted me to do was get out but because the fact that he would sit there and say that he loved me and that i am his world I stayed intill I knew I was not his world and his love was just a word that he used to get me to do what he wanted me to do. I want people to just listion to everything and don't let your self think that you dervise anything like this.  No matter what you do. You should be the one in charged of yourself not someone eles. Don't just give your whole self to someone intill you know them so long and trust them with anything and everything. I know everyone says this but do wait intill your married it makes everything so much easier and it is more speacial.