This evening I have a meeting with my ex. We broke up six years ago and both had long term relationships since then. I am four years into my marriage. Recently we bumped into each other at a party and agreed to be on speaking terms again. I would like to be friends with her and would not mind having a coffee and chat once in while. Still, I am afraid that being single she will try to lay her claim on me again, which I would not fancy. What would you/did you do in such case?