<human>: My ex and I broke up last year because she moved out of the country temporarily for a job.  Well, when she came back, we talked off and on.  She got a boyfriend, cut off all ties to me, and when that relationship failed, she started talking to me again.  Great, that's no problem, I understand why she would do that.

Here's where I'm stumped and would love some advice.  It seems like every time after we spend time together, I don't hear from her for at least a week or so.  For example, I just went out with her on Sunday, didn't hear anything from her (no biggy, only been a couple of days), but I did drop her a quick text yesterday morning saying I enjoyed Sunday night, and hope we can do it again.  No response.

This isn't untypical of her.  My question is, why is she doing this?  Is there anything I can ask her to better understand why she does this?  It's rather confusing.  I'm crazy about her, but I can't keep waiting around for her to come back around and give me her time when it's only convenient for her.

Can you give me the gist of the text in a nutshell?
<bot>: Ex randomly stops talking to me for some time after we go out and have a good time, etc.  Why?