Partner went crazy

Hi i need advise from you ladies.. So yesterday, my partner ( We live together and have a 3 year old together) went to restroom and went over my phone, i totally forgot about it. We never go through eachother’s phone, not because i dont want to. But he NEVER ever lets me. He’ll put it under his pillow, he’ll take it with him everywhere and honestly i won’t beg to go through it. If he’s hiding or doing something that’s him. We’re both grown. Anyways, i have a childhood friend who has been into me since YEARS ago, but i’ve never seen him like that. Only as a friend. And i had a conversation with him and he sent a picture that we had together from like 2018 way before i met my partner and in the comversation he’d tell me that he likes me and he would invite me to go out, but obviously i never did and i wouldnt respond other than “ Lol” and havent talked to him in weeks. Anyways, he came out of the bathroom and went crazy asking me when was that picture from and that if we had been “FUCKING” eachother. He started calling me a whore and a stupid bitch. He even called the guys ex (They have a kid together, but mo longer together) and he told he that i’ve been fucking her man and that i was a whore. Even though i had explained to him that the pic was years agoo and that i have never been interested in him. Anyways he dragged me across the floor and got on top of me, trying to choke me and kept asking how many times have we fucked.. It was a crazy and scary experience. I dont want to see him ever again. As much as i love him. It’s unnaceptable that he was calling me names not only to me, but telling other people and then trying to hit me. I know it’s best for our daughter. I dont want her growing up in this environment. He pays bill, but i do have a job and find myself capable of taking over. I already organized his things and told him to leave. Since he swears that i have been cheating he said that he’d leave, but i doubt it. What are some good first steps to get out of this toxic household? My mom said if i needed to go with her, to do so. But honestly i dont feel comfortable going somewhere else and all the furniture in our place i have bought with my own money, my daughter and i have everything here. All he has is clothes and shoes. It’ll be easier for him to just leave me alone. pic (Nothing big buf just to show that he dragged me across the carpet)