If she is already 8 it won't be much longer before she has better social skills and will be able to understand your interactions better.
I would be extremely surprised if she is still feeling any sort of romance toward you at 10 or 11, although she will hopefully still show some affection. Girls of 11 or 13 can become brutal in their sudden coldness toward us guys whom they used to cling to
I do not want to hijack the topic but I wish I knew this sooner. This is 100% true advice.