Manipulative Narcissist Babydaddy... How to escape?

My LO's dad is so manipulative, I wish he would stay away from my son and I. He will contact me about the baby but I know he doesn't care about him because the few times he came to see him in December he would come beg me to take him back versus spending any time with the baby. It keeps me torn because I know what he's about but yet it's hard to maintain a good co parenting relationship with him since he's telling people I keep the baby from him. Which isnt true, Ive tried to be friends, ive wasted so much energy on him and its exhausting.

I blocked him from everything because I got tired of him manipulating me, he would go weeks without talking to/ignoring me or asking about the baby, said he wouldn't help me financially because I'm not his girlfriend. Then when he's ready to see him he will whine about how much he misses him but never shows up to anything we set up to see him. I'm tired of him having this level of control I can't wait to get to child support court so I can try and cut all ties with him. I really just put him on child support just so I can have money to get someone to babysit for me, it's hard not having any help. Yet ! He comes and ask me if he can have the baby's social so he can claim him on his taxes, after that I was just done. I told him to quit contacting me until court gets here and guess what he actually did ! Now I feel like him and his mom are secretly plotting on me, to try and put my baby on his taxes. He has me blocked from his phone so his new girlfriend won't see that I'm not a bad person he tries to make me seem. Also so she won't find out that he's really homosexual which is the reason I left him !