My heart hurts me when my daughter tells me she does not like me?

My daughter is 3 but very advanced. Me and her dad is nOt together but she lives with me an goes to her fathers every other weekend. Ever since she went to her fathers back in feb she tells me she doesn't want to stay here and she doesn't like me. I could understand, because i was in school last semester and I couldn't give her the time she needed and her father knew that but still made it seem like I didn't care. He basically is a sperm donor, he tells me he will get her so and so days but don't, I wish it was different but it's not. He says he resents me so bad he does not want to see his daughter, he also uses his job schedule as an excuse. Well I work nights full time and go to school, ye she lives with me and it makes it a little easier but I don't stop him from seeing her. What she tells me hurts me so bad, I really want to send her so she can be happy. But I can't force him to do take her. But if he says yes, a month or two will let me know if my decision I made is right. I just want my princess to be happy because I don't think she is. Im really am hurt by what she is saying even though she is 3 but I know she knows what she is sayin