Should I talk to his parents or should I complaint a file against my boyfriend?

So we are in 5 years relationship and my boyfriend did everything with me physically and said that he will marry me. Now his parents told him not to talk to me or not keep any connections after which he is stepping back. I was ready for sex thinking we will get married and he told me so. Should i tell boyfriend parents about his deed or should i go to police?

Should I talk to his parents or should I complaint a file against my boyfriend?
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