It was guilt. She was guilty because the blondie died saving her.
U can argue but for me, not all of it is guilt, unlike with black hair. When she was at the hospital she was talking about her discomfort, due to her denying her feelings [it doesn't need to be romantic feeling but there's obviously something there]. She also stated that she want to see him again, so she can understand her feelings and it showed both of them in a yin and yang position. [ Yin being female and Yang being male they balance each other, which can lead to a healthy relationship (don't quote me on this lol cause maybe it's just my biased towards blondie lol)] it could also just be the translation since it's not the best
So I was right she really did like blondie,
I can sleep happily now [tho that kiss is pitiful]