Visitors Story: My worst feared red flag is the stage 5 clinger. You probably know what I'm talking about, the person who gets suspicious when you request an evening apart to spend time with friends.
The person who calls or texts multiple times in a row if you can't answer immediately. The person who, even at a public event, refuses to leave your side, even when probably necessary to do so.
These are all signs...it's good to be close in a relationship, but everyone needs their space as well.
The only thing to do in these situations is to address the problem directly, and if that doesn't work, end the relationship.