<human>: Can you summarize the given text in a few sentences?

We have been broken up for 2 years, yet since then she has followed me on instagram, followed me on twitter, friend requested me on facebook, and most recently added me to snap chat. To emphasize the weirdness of this, she literally added me the day of me creating said social profiles. (we were not friends on facebook, so it did not notify her I made an instagram)

A year after the break up even, she was texting me DAILY for 3 months straight. Eventually I started texting her as well every once in a while, and just a few months ago she would talk to me all day, and then out of nowhere started ignoring me. I did not text her a lot by any means, and I actually was always really nice and didn't ever bring up anything about the past (we dated for 4 years). This was when she was very clearly trying to get back together with me.

The last time I spoke to her we talked the entire day and it was somewhat flirtatious; a week later I text her and she straight up ignores me (said text receipt read at so and so time). I created the snap chat 2 months ago...and she instantly added me. Why add me on all these things, and then ignore me?

it boggles my mind and it is just frustrating at this point...like I said, I only casually texted her and was by no means overbearing in any facet...I still have feelings for her, and I don't know if she's dating anyone (I don't think she is though). Why go through all that trouble and then blatantly ignore me? I honestly don't think it's friend zoning because we don't speak often and I don't hang out with her, plus the whole thing where she was trying to get back together with me. She clearly wants to keep tabs on me, but for what purpose if she doesn't want to talk to me?
<bot>: Ex-girlfriend added me on every social media site possible, tried to get back together, now ignores me while still adding me to said social media sites and keeping tabs.