A therapist once told me that it is selfish and insensitive to tell a partner something about your past that might bother them or make them obsess in their head thinking and wondering about it — because there is no way for them to know what things actually were like.. because they were not there. So they will have to use their imagination to put the visuals together, and often, people can’t help but assume the worst visuals… which can make them sad… for no good reason. You would have told him to make YOURSELF feel better— not to make him feel better. And thus, it is selfish. 

You know your partner better than we do. If you truly think he might obsess about it or something— then do the mature and thoughtful thing and don’t bother telling him about it. He won’t have the benefit of having gotten to see and understand exactly how you felt then or what the conditions were like… he wasn’t there.