Help.

I hate my son due to his biological father. People tell ask me don’t you just love him all I can do is lie cause no I really don’t. I know I should love my child regardless of anything but I don’t know why I don’t love him the way I should. Here is some history on this before people freak out. His father left me when I told him I was pregnant and never really kept in touch during the whole pregnancy. He broke me inside and out to the point I don’t know if I can love anymore.... When we were together he was trying to get a 16 year old pregnant mind you he is 21.( Yes I know it legal in Michigan but still.) He always turns to street drugs when he has the chance. He also told me he doesn’t care what he does with my child when he has him weather it’s smoking or drinking around him. And there is a lot more just in that 9 months. When I was in labor I told him and his family they were not allowed at the hospital. My child has been here for a month now and he has never contacted me. Then I got a random text from his sister calling me a horrible mother and that I’m ruining everyones life cause of this. His parents randomly showed up at my home and helped them selfs in to my house unannounced! I went in to full panic attack mode to the point where I could not breath. I wanted nothing to do with any of his family at all! But he proceeds to go on social media calling me a F****ing B**** for keeping my child away from him and also calling he a Psychotic B**** and that he completely hates my guts and to be completely honest that broke me even more then before... I don’t know what to do any more. I’m sorry if I’m confusing I just need help and advice..... cause I completely hate myself due to the this.