This is a English-speaking forum, so while none of us here have any prejudices against other languages, its best if we keep all posts in English for the sake of understanding.
Also Google Translate says you've posted "Hello. Me and my girlfriend live together for 3 years, but yesterday after the scandal she had gone somewhere. I'll never know where it may already have phoned all her friends, but it was no no. No one knows where she is, and if anyone even knows nothing. Tell me what should I do? Maybe we should go to the police?"
So...uh...Это не совсем правильное место для этого вопроса в любом случае. Но да, вы, вероятно, следует обратиться в полицию.