u love your kid nothing u can really do with out causing some pain to her

from now on when ever u talk to him make sure u do it on your cell phone ...get one of those record your phone call apps ...set it to his numbers to automatically turn on

your state is only a one party state
Missouri Recording Law | Digital Media Law Project
this means u are allowed to do this with out telling him it being recorded ( my state is a 2 party state so both ppl have to agree for it to be used in court ) yours is not

not u stay civil and calm as much as u can when u are talking to him .........let him be the **** and dig his own grave

then u take those tapes and show them to the judge that is on the custody case ......he will end up losing his rights for the child to live there since he is acting this way he will be allowed to see her .........if he can prove he is better and not a **** then he can get 50/50 back in a few years

from the sound of it the guy is a **** so he will be looking to do something to hurt u ......by u recording those types of talks it will wreck his case he trys to use against u