Stop all contact immediately and report the matter to the dating site.
Report Unacceptable or Suspicious Behaviour - Nobody should have to put up with offensive, insulting and threatening behaviour online any more than they should or would if talking to someone in a bar or café. Don’t feel bad about cutting a date short if you’re not keen.
It is impossible to get back information once you have given it away.
Trust your instincts and immediately stop communicating with anyone who makes you feel uncomfortable or apprehensive. You don’t owe the other person anything, no matter how long you’ve been chatting or what’s been suggested. If you’re raped or sexually assaulted on your date, help is available.
Never feel embarrassed to report a problem to the dating service. The safest plan is to meet somewhere public and stay somewhere public. Make your own way there and back and don’t feel pressured to go home with your date. The way people interact online isn’t always the same face-to-face. No matter what the circumstances, sexual activity against your will is a crime.
And a person can become a problem without having a record.
Therefore, don't get a false sense of security because you're on a dating site; do your own research to learn more about someone and make informed decisions before you decide to meet.