Regarding the return ticket: she does need a return ticket to get into Kuwait on a tourist Visa. However, there has been speculation that she refunds those, and buys new when she’s actually leaving. She doesn’t always know where she’s going, it seems.
We don’t know for sure since her actual financial situation has been a mystery but with context clues, we know money has been getting tighter and tighter. It wouldn’t surprise me to learn she refunded her last return ticket, spent it on fast food, and has amped up the begging lately because she’s realizing she might not have enough for another flight. It makes sense due to her inability to plan ahead.
If she did refund her ticket and doesn’t have one out, she is fucked. Well, she is fucked anyway since she vlogged everything she did, but she can’t lie and say she planned to go home without the ticket. If she’d had one she could have left immediately, assuming she recognized any danger. Which is a big assumption.