Why does my ex Girlfriend find reasons to contact me??

We were togther for 3 years and broke up 9 months ago. She got a new Boyfriend right away and they got a place together. I stopped talking to her because I didn't want to hear about it or be involved at all. Months later she apologized for having had hurt me and tell me how nobody will ever compare to me. I appreciated it but stopped taking to her again after that.

So now every so often she will text or email me a question about something random that she already knows the answer to or could easily find out on her own. If it's not that it's something else. This morning she emailed me that she's buying a house (which there's no what she could be doing tthat BTW). So question is why does she do this and what is she really saying. I just answer her questions and leave it at that. Why does she do this though?
Why does my ex Girlfriend find reasons to contact me??
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