single moms? does anyone hate their baby father?

I'm not with my child's father right now and I doubt that he will be at my baby shower or in the delivery room. One of my "mentors " told me that basically it's my fault I chose to sleep with a guy who would just walk off. But he wasn't like that when I met him. So idk how to feel, sometimes I do feel guilty but other times I feel like I am human, so mistakes are normal. My "mentor" told me that he didn't expect this out of me and that I messed up. It just kind of hurt hearing that from him. I'm 24 and a college graduate with a decent job, but it felt like he threw that out the window when talking about my pregnancy.