Her fear is not totally irrational. I have felt this kind of thing before. Not only with women but men friends as well. After leaving someone we start to miss and think only good things. But when we again try to get back together we again face the same issues with that person.
Also from your earlier posts I read that you are kind of feeling lonely. See that you want to patch up is it because you are feeling lonely or for other reason. Feeling loneliness is a good thing actually that’s where our creativity comes. You will see non creative people fill their day with multiple friends and other distractions.
I am answering even you have deleted it. Sorry for that.