I am glad you are considering contacting her. I totally agree with Rob67 that you have nothing to lose but so much to gain from it. I also think she might appreciate it. I don’t think you can really do any damage. Worst thing would be her just thinking you’re some weirdo, but I don’t suspect she would since you’re talking about her son. Tell her how much you cared about him and that he will always have a special place in your heart. You can do it!! Not all 80 year olds are good with email. Something to consider. Maybe get her phone number and call?