Please Help. Just Reported Ex Gf For Theft, Officer Said It's Domestic, I'm Scared Of Retaliation.

The breakup and theft occured about 10 months ago. I just reported my ex gf for theft, but after explaining everything to the officer he said he feels he need to file it as domestic. I gave all the information I could, serial numbers, dates and all that. I didn't report it originally due to just wanting to move on and cut my losses, but another officer recommended should. I'm now just terrified of her retaliating, or even making up fasle accusations against me. I feel I've kicked the hornets nest and just find myself scared and anxious till I get a update. I would like to know what the process is once something is reported, what can happen, just some peace of mind I guess, but honesty. This is in colorado if you need to know the state.