I'm sorry you're struggling but honestly you lost me there. I'm not really sure what you are saying. Best I can tell you is that we have no control over what other people say or do, including when they lie. We only control how we respond. So a habitual liar would need to be avoided. And we need to be very careful about who we share our deepest truths with. If the liar in question is your ex, then focus on the ex part. Forget him/her. Even if he/she lies about you, the people to keep in your current life will pay no heed.