Found out husband puts me on speaker at work

Me and my husband are separated but living together. He's the one who asked for the divorce. There have been issues on both sides. I take full responsibility for my part in our marriage coming to an end as I have not always kept my temper and bipolar in check. I called him yesterday upset because he shared something on Facebook saying all he wants to wake up to is breakfast and good sex. Some girl put a laugh react so I called him asking who that was. He claimed he didn't know and it was just something funny his brother shared so he shared it himself and said he didn't feel like arguing with me at work. I was upset because a girl liked it and then I hear someone in the background say "She is fucking nuts." Turns out since we've separated every time I call my husband to yell at him at work he just started putting me on speaker for his coworkers/friends to hear and even changed my name on his phone to "Pain In My Fucking Ass." So now he had me looking absolutely insane to his coworkers. He said "I can't make you look anyway by showing exactly what you're doing. If me showing exactly what you're doing makes you look shitty then you're being shitty." I'm not denying that I've been shitting. I think it's fucked up put me on speaker when I think the conversation is private.