Dating-relationship issues

Here is the situation.
I am a guy of 22 years old and I'm seeing this girl of my youth movement for more than 3 months now. We meet up every two weeks or something for a date, have so much fun, have (good) sex, after which I crash at her student room. When we are together, the two of us, we have a great time. I want a relationship, but she has doubts though, for like a long time. That's the issue. She knows she loves me, she says, but as long as she is not sure-sure, she doesn't want to rush things, which I totally understand. It's just,... she doesn't text me, or doesn't take initiatives ever. My motives, a long-term relationship for example, are clear, but I feel I get no confirmation of her whatsoever. Not that that is unusual, it's just that we've been seriously dating for at least 3 months. Whenever I want to talk about 'us', or how she is feeling, she just doesn't know. She has no idea... of anything, which sucks cause I want to start building this relationship. I see her two times a week at the youth movement, but whenever we are with friends, she doesn't say a thing, nor does she makes eye contact.

I don't know what I aim to achieve here by sharing my perhaps childish worries, but perhaps an opinion of the outside could help me broaden my view on this matter. (in case you didn't notice, I'm no native English speaker)