There are many fraudsters and impostors these days. Always investigate and make sure your fiancé does not have any subsisting marriage before agreeing to marry.
“Trust in the LORD with all thine heart; and lean not unto thine own understanding. In all thy ways acknowledge Him, and He shall direct thy paths.” – Proverbs 3: 5-6
“He that is surety for a stranger shall smart for it: and he that hateth suretyiship is sure.” – Proverbs 11: 15
“Take his garment that is surety for a stranger: and take a pledge of him for a strange woman.” – Proverbs 20: 16