Can I put my sons dad on child support or will they just dismiss the case ?

Delete if not aloud but I need opinions on something. Do you have to have a “valid” enough reason to put someone on child support to actually get it?? I’m currently in a situation where I am considering filing for it against my sons dad but everyone in his family has told me I won’t get it or they’ll dismiss the case when we go to court etc. He DOES help with our son and helps me financially but it’s ONLY when I’m in a relationship with him. We break up constantly because he’s verbally/emotionally abusive towards me and I’ve tried to leave him multiple times but I’m a stay at home mom with no vehicle so currently have no way to financially support us right now so I keep having to go back to him in order for him to “take care of us”. I have my own apartment which income based so I don’t pay any rent currently but still have to pay KUB water and WiFi which he also only helps with if we’re together. Coparenting with him is literally impossible as well, as SOON as we break up he wants nothing to do with us and won’t help financially with anything to do with our son. Like I can text him while we’re broken up and ask for help with something for our son and he don’t even respond. Just today I’ve text him 4 times asking for help and he’s ignored me all day long because we’re not together currently. He just wants me to come crawling back out of financial desperation like always. He keeps telling me I can’t put him on child support just because we broke up but I would only be doing it because when we do break up he won’t help with literally anything. Can I put him on child support or will they not give it to me since he has helped with him when we’re in a relationship? I want to leave him for good I hate being trapped in this shitty relationship and having to keep going back to him and allowing myself to be treated badly just to take care of our son.

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