I am with Piamed on this one.
I think if you love someone, you have to accept each other's past.
Everyone has a past.
Photos and letters are just memories and should not cause anyone to be jealous.
I mean, where do people draw the line?
If someone has an expensive painting of someone in their past for example, do we destroy that?
I think we should accept each other unconditionally.
Jealousy eats people from the inside.
Love your partner and help them with the past, present and future.....but don't feel resentment at their past life, but try to understand them.
It would be respectful to keep old photos and letters out of sight, and if necessary, discuss these things within the strength of your new love.
Better to try to spend energy trying to love each other more than to waste energy trying to control them.
Freedom is trust, and trust is one of the biggest parts of love.