What was the reasoning behind him sending the e-mail if I'm not being too nosy? I mean was he trying to get a rise out of you or was it more like I came across these and didn't know if you wanted them?

As for what to do with them you have to make that decision yourself. If it was me and they did nothing but bring up bad memories I would probably get rid of them. If there is some good coming out of them I would hang on to them . I guess it depends on if you want the reminder or not.