Am i wrong?

my partner of 4 years called my daughter who is 10 a brat and bast-ard in a rage he is not her dad i got so annoyed and angry i though him out of my how he said it a few times it started when she said to him why do u keep taking the micky out of me its no wonder i dont want to come home from my dads then he shouted at her and called her a bast-tard and brat i said to him leave it and he just kept saying it i told him to leave y do i still miss him its been a week and was i in the wrong for chucking him out i love him so much its been a up and down relationship