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

So I met this girl a few months ago. We hung out with each other maybe 4-5 times, slept together twice. I wasn't feeling it, so I ended it.

Soon after, she started texting me non-stop, all day, everyday. If I don't respond, she just continues to message me. It's to the point where I want to throw my phone every time she contacts me. I go days without talking to her, and the texts and calls continue. I went two days ignoring her, and I had about 230 texts/missed calls. Also, when I don't respond, she will create social media accounts to try and add me and talk to me.

Now, I know I should've blocked contact awhile ago, but I feel bad for her. She's from another country, hasn't lived with her family since she was 14 (went to a private boarding school in said country), then came to the states for university. She has no family here, but an aunt, and no real friends to speak of, which is why she's so clingy. She is also losing her job(she's an engineer), and she is currently planning on marrying someone for citizenship (after she asked me, to which I declined, even though she was offering $50k). This is basically what she talks to me about 24/7 (that and how she wants to hang out, even though I haven't seen her in months). She is so desperate to stay in America it's pathetic, but maybe I don't understand where she's coming from. She's from a wealthy country, she just refuses to go back to where she's from and talks about how her life is hell? So basically our convos consist of her talking to me like we're dating, her telling me about her plight to stay in America, and her acting crazy when I don't respond.

Normally, I could be friends with someone after dating, seriously or not. But she continues to think there is something between us even though I have told her time and time again there's nothing there. She says "she can't live" without talking to me. I know this is threat and manipulation, but what if it isn't?
<bot>: Barely dated girl, now she won't leave me alone, I want to just ignore her but I feel bad for her. What to do?