How much is too much?.........................…

i get anxious when i dont hear from this girl i like, which usually results in me initiating contact. let me put it out there that she has not once called or texted me on her own in the 3 or 4 weeks we have been seeing each other. ive ruled out lack of interest on her part because she is always receptive to my ideas of going out and likewise doesnt resist when we kiss. but i feel intrusive when i text or call her although she has never said anything negative about it. ahhh, i text her every 2-3 days to see if she wants to go out or meet up and while its 100% yes's so far, she doesn't initiate ever. id like to talk to her and hang out with her but i dont want to seem bothersome.