What the hell is he playing at ?

my ex was a cheat . i got rid of him . i tried to call him to arrange contact for our daughter . he refused to answer. i gave up .my daughter text him he responded . so i thought leave them to it . the next thing i no is he is texing my daughter bad mouthing me to her saying i had rang him and shouted at him .he accused me of deleteing the text he had sent to her ,despite the fact my daughter told him .dad my phone has being in my pocket all day mom has not touched it . why would he want to do that .why fabricate lies? he texts my daughter saying i had being shouting at him and he was gonna change his number. its not true ..i no i should not but i texted him i was so mad . i told him to change his number and to get the hell out of my life and to stop lying to our daughter. next thing i no he texts her the new number and tells her he had to change it because of me .he states i shout at him down the phone . when all i sent was one text asking him to stop telling lies to our daughter . why cant he change his no and get lost .he dont provide for our daughter the other day i asked him for a bra for her so she would not be exposed to looks in pe . what game is he playing . i want no contact with him .why would i . he cheated i want him out of my life . he has my daughters number .what annoys me is he feels the need to bad mouth me when i have done nothing wrong . i have told him to text call our daughter .to also pay for the credit so she can call or text back .but he wont im not paying for the credit as i pay for everything she needs heat ,food shelter,clothes etc .not a penny do i get from him at all . why can he not leave me alone . im considering moving .im so stressed out