Should i Recall my ex or forget her? plzzz help plzzz?

So this is me who ****** up this relationship.She will always think that I have cheated on her but she is the one I have ever had! I love to go back to each and every moments we spent together, I spend nights just staring at her pics,thinking about her smile,her scolding me,our all special moments.But everyone is right, life never stops!So it's the time to move on.But I wonder should I realllly try to forget all these special moments or treasure it forever??Plzz suggest.. I can die to see her once:'(