Madgran77
I would write again, send to old address to be redirected OR phone and say " I am wondering if you feel our friendship has run its course as you haven't given me your new address. I will respect your view if you do wish to finish our contact but I would appreciate it if you could tell me either way"
Being open and asking is always better than second guessing or created misunderstandings
Good idea. This may also prompt her to reflect on her behaviour and at least the situation will be clarified.