<human>: First, some quick details:
This is a long distance relationship
We have known each other for 10+ years, but have only become interested in each other within the past 2-3 months.

I'm going to school in a different province, and I flew back to see family, friends, and her over the holidays. We really like each other, and I definitely see a future in it. When we finally got to spend the night together, we had sex multiple times, and she was definitely into it (behaviour and, uhh, physiological responses proved that to me), but I basically had to initiate everything.

I went down on her, and she got a lot out of it, but she did not even touch me "downstairs". She also claimed that she didn't like being on top because she couldn't feel anything, and when she got on top she couldn't seem to get me inside her (sorry for the graphic details).

None of this seems like a deal-breaker to me at this point, but it is important to me that at some point she becomes more active and reciprocal. I didn't broach the subject at the time because I didn't want to potentially ruin an otherwise amazing time. Now that we are apart again, I am unsure how to address this with her, or if I even should. Could this just be an age thing? Or does this behaviour seem strange?

Can you give me the gist of the text in a nutshell?
<bot>: I want to know if it is a bad sign that a 20 year old girl is not as active or reciprocal in bed as I would like or normally expect.