Does she even know it was you who gave her CPR? If no one told her, she may still have no idea at all.
My son had a cardiac arrest almost 17 months ago, he was already in hospital when it happened but only on an assessment ward. We were told gastroenteritis but it actually turned out he had septic shock caused by a bowel obstruction so went into multi organ failure. He was gone for 20 minutes and it was one of the scariest moments of my life.
He was in hospital for 10 months and we were told he probably wasn't going to make it several times. After his cardiac arrest, he was transferred to the hospital he was in for 10 months and soon after was also diagnosed with cancer so thinking about those involved with his cardiac arrest was honestly the last thing on my mind.
The hospital had a serious investigation review which happens when a child has a sudden cardiac arrest without a known cause. It took a very long time and I only received the report recently which included that some of the staff involved with his cardiac arrest struggled afterwards and needed extra support and that is when I started thinking about the other hospital and those involved right at the start.
All that to say is that she has her own trauma to deal with, not to mention dealing with other potential medical issues that at this point, especially just 8 weeks later, it may be the last thing on her mind.
I'll be returning to the first hospital my son was at in a few weeks to say thank you to some of the people who were involved with his cardiac arrest and for them to meet my son. My son is now in remission and doing well, the mental scars are healing and time has helped. 8 weeks is no time at all.
Give it time. If she knows, she still may come to you eventually.