Secrets act as blocks to intimacy and very often, they do get out, thus undermining trust in the relationship. If you have an issue from your past , the best is for you to put it out there and deal with it in the context of your relationship rather than go for crisis control after.
Secrets are very personal, charged with emotions and feelings, usually not easy to share or it would be no secret. So the secret keeper will deliver the message with the negative charge that comes along with secrecy. Therefore, the listener may not “hear” the secret exactly.
By loving each other, respect, consideration, empathy, support, intimacy, all comes with the territory. The person feels comfortable talking about memories, emotions, feelings, trusting the relationship. Hence, things will come up naturally.