I’m just going to assume you (as I am) are a man. For women, this is a very real concern, and is still a somewhat common issue. I know two women if my family who were married for 10+ years before their partners had a sudden, violent change. For one of them their partner managed to empty all of their savings, and leave the country. She literally had to couch surf at 50 because she had nothing, and hadn’t kept her own savings.