Why did my ex lover stop texting me back?

she called. Me like a million times that day then at nite she texed me and when I texed her she told me to stop texting her wtf so I was like u can't tell me what to do before you know it we were arguing and she said something mean so I said "okay b*tch f*ck you" and she didn't write back, this was 5 days ago. What do u think?,