Can I tell a guy to stop following us
How are they following you around?
We saw them at at the same place for lunch.
That is a really scary situation, but you can't let them keep following you around. It's creepy and they might kidnap you, so you need to be more aware of your surroundings.
I think I need to leave.
Please try to get some place safe or tell a security guard some guy is following you. They might be able to create a diversion so you can get home safe.