He cheated

So i just found out my daughters father was cheating since january and is in a relationship w this female that happens to be his best friends sister. He was very distant wensday morning at 4:30am i woke up decided to go thru his iwatch i found txts of saying how much they love each other n how they cant b w out each other. This totally broke me so i called her from my fone she asked if he knew that nbr around 530am. He came in furious asking why was i getting nbrs from his fone. He noticed i was recording grabbed my fone n tried breaking it thank god nothing happened. He told me to get out his parents house and grabbed my daughters clothes n my clothes from the closet😓point is i called the cops a report was made. I am now at my moms house, child support application has been submitted.Yesterday he was calling asking to see his daughter. Hello!!! U kicked us out and u took our daughter w ur mistress! I just feel so devastated this is a nightmare