That does not mean that you have to be afraid of everyone you know - but it really does mean that you owe it to yourself to pay attention to yourself. Pay attention to your relationship wants and needs. Pay attention to your instincts. Do not assume that you can look at someone and know whether they are a rapist. Rapists come from all races, religions, cultures, educational levels, professional levels, economic levels, etc. etc.
Rape occurs in marriages.
It can happen. It does happen. No, you do not want to live your life frightened. You should not live your life in fear. Nor should you live your life being cavalier about your person, your safety, your feelings, and your instincts.