I feel super guilty for calling the cops.

So I was driving around oakland with my husband(in California) and was at a red light when I just happened to see a girl leaning on a balcony. I thought she dropped something but then I see someone come up behind her and punch her so I told my husband and we went back around. When we got back, there were other people yelling up at the dude and the girl was telling them to mind their own business. And her bf(?) was yelling something at her but I couldn’t hear him. I ended up calling the police because I would want someone to help me if I was in that situation. But hours later, I don’t feel good about what I did and I just feel guilty. What if I made it worse for her? Idk. My husband said I did the right thing but I don’t know.