First of all, you met a girlfriend online and sent him money? 2000 red envelopes have been divided many times, and now he has blacked you out. You have to go to the police to arrest him. If he is caught, he will definitely be sentenced, but generally speaking, I don't think the police will help you if it costs 2000 yuan. Most of the people who really catch you only give you a sense of strength after you give these things to him, but it may not be solved when. Unless you happen to meet this girlfriend, these things are combined with the reports of many other people, and his amount has reached a high level, or a group of criminals, then the police will come out. If you are alone, basically the police will do nothing.