What do you girls think i should do with my ex? or what would you be thinking?

So to make this short, my ex girlfriend broke up with me alittle over 3 months ago. she has been dating someone else already just a month after our breakup. We had a very special bond. lost our virginities to each other and everything. Well we have stayed friends through our breakup but she has begun to ignore me more and more now. and i understand why. she has a new guy and such, but we talked just a couple weeks ago about our friendship and what it means to both of us. The past couple days she has just ignored texting me back. i havent been overtexting. she initiated the text, i texted back, and she doesnt reply back, that sort of thing. It takes alot to make me mad, but im definitely getting there. I guess im just asking is should i just start ignoring her to let her know how it feels and to try to move on? i do want to get our friendship back some day but right now i just cant deal with her treating me like this. im a very good person, and frankly, dont deserve to be treated this way. i think i know what i need to do. but my question again is if i do tell her that we should stop talking for now until she is ready to be friends again, do you think she will get the message that im not some doormat for her and start to miss our friendship?