Prayers and best wishes from here Lothar.
Dad died from cancer. His sister had one breast removed and lived many decades after. This was probably 40 years ago or more.
The love of my life had a breast removed many years ago. A year later, they took the other one and she had tramflap surgery.
Her then boyfriend told her that the surgeons had butchered her. No wonder she left him. Yes we keep in touch and still love each other in some manner.
I've no doubt that you'll be by here side every step of the way Lothar, but the battle goes deeper than anything you may see.
For some reason, women obsess about their breasts. I've no idea why as it makes no sense to me. It may be a cultural thing? In their DNA? Color me clueless.
Hold her hand every step of the way. Hug her every chance you get. Back OFF when you think yer the almighty councilor of resolve of all things. She loves you, but you'll never understand what she's going thru. Look for support groups (they're everywhere). By ALL means, don't take her 'supposed' actions as a rejection of your intentions. Yes, it's confusing as all get out.
Women are wired differently than men. To that end, it's the husbands job to navigate the ocean of emotions that may/will occur. You may find support groups for that as well.
Hang in there Captain.