Blindsided with Divorce

My husband blindsided me about a month ago telling me he wanted a divorce. He refused all communication with me when I attempted to try to work things out. My oldest daughter is 10 from my first marriage. She struggles with Anxiety and ADHD. We also share a 3 year old together. 7 years I have known this man, and he is acting like a bachelor already. I brought the kids home last night, and he packed a bag then told our 3 year old he will be gone all weekend but she can call him. I’ve never been so hurt in my life. I filed for Divorce because he refused to communicate and left me with taking care of the kids on my own. He comes and goes as he pleases and spends his time out drinking with his friend. Will this get better?