A lost relationship is a painful regret because it implies that there’s nothing to be done. And on occasion, there isn’t. Death, for example, can get in the way. All other reasons, however, are moot. I’ve waited too long. He won’t forgive me. I can’t forgive her. We’ve both moved on. These are the thoughts that the negative voice in our head uses to fan the fear of rejection.
Put a muzzle on it, because there’s probably one or two people who you wish were back in your life, if even tangentially. Think of the joy the connection will bring — and then reach out. Likely, both of you will be delightfully surprised.