Hi Catherine,
Your dinner guest doesn't sound too empathetic at all.I mean,you are only 6 months post surgery and may still feel abit vulnerable.You are right,it's not a competition and afterall,cancer is cancer no matter which way you get rid of it. Perhaps she is still not psychologically ok with not having a boob.I have had 2 bouts of cancer(7yrs apart)and did lumpectomy,full node clearance,radiation and then last year had mastectomy then chemo.I can say that all treatments are pretty awful.However,completely losing a boob and your hair is probably the most mentally challenging aspect to come to terms with.(for me anyway).Hope you keep recovering well and you'll get lots of support on this site.
Tonya