My relative texted me, but now won't respond? ( details inside)

I have a close relative in America who I guess has been having a really hard time. We talk on fb and scype, she rarely asks how I’m doing, about my kids, etc. it’s mostly about the hardships she has, I try to be helpful. She texted me wanting to come here ( Australia). I said I would pay for a ticket to come here. But then I asked, ” After three months, do you have a place to go back to?” She said, “never mind ” and hung up on me. I’ve been texting and she hasn’t responded. I explained that she could only get a visa for three months, she can’t just come and live here. Should I just leave it alone? She won’t respond to say if she’s angry with me or what.