Don't tell her she's being disrespectful after the fact as that just sounds like blame. You need to do it WHEN she is being disrespectful. THAT is the time to state "I am not going to be treated with disrespect like this" and then walk away, or leave the house or whatever it takes to send her a message that you're not putting up with it.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712