it's hard dude, because you may seem lower in value initiating conversations all these times if shes not starting convos with you. your best forgetting facebook and text messaging and just call her and be genuine with her that you may have made a mistake and you want to see her again. BUT its best to do it in a way that shows that your letting her know the deal AND THATS IT. your not gonna die if shes says she doesnt want to see you again, and you show the willingness to walk away by just kinda saying that you said what you want to say on the phone call but now youve gotta go coz your busy but YOU call me back to discuss meeting up again etc.

Hope this helps