My heart is aching so hard right now. I know everyone will call me horrible because I am.

I have (had) a boyfriend who I have been with for almost a year. I have one child by my ex boyfriend. She is 14. She never got along with my boyfriend. I assumed it was because she never forgave me for leaving her father. I am a Licensed Practical Nurse so I have been working so much..... My boyfriend does the night shift at the Reasors by our apartments since it's open 24 hours. A month ago my daughter came up to me and said she wanted to live with her dad... I started crying and asked her why. All she said was she doesn't like living with my boyfriend. I was heart broken but she still continued to visit. Last night I hear a banging at the door. I open to see my baby daddy. He had his shot gun in his hand. I screamed wtf he was doing and he asked for my boyfriend. I told him to leave and he said "Do you know what that fucker has done to our daughter!!" I was paused and confused. My daughter was screaming telling him to get back in the car. He said "Do you want me to tell her". She looked at me and the words she said will scare me for life. "He raped me....." I couldn't believe what she said. I thought I was dreaming. I told my ex to put the gun down and come inside. My boyfriend wasn't here anyway. He was at work. We sat down, but he was looking at the window waiting. My daughter told me he would touch her when I was at work. When he was supposed to be on night shift and she was home alone he would come and touch her, and have sex with her.... I feel so much guilt. I called the police. They came and they told me not to contact him until they got their. I couldn't help it. I called him sending him a voicemail if me yelling. I shouldn't have done that because he didn't come home that night. We had to take my daughter to the hospital. I told her I was so sorry and said the same to her dad. She told me it was okay and her dad said "I'm not mad at you, but I will kill him" she of course told him not to because if going to prison won't help her at all. She is still living with her dad and e just can't get over the guilt. How was I such a bad judge of character. I'm the worst mom ever.