My friend came over and in a day ended up borrowing money

I had a group hangout with friends I haven't met in a while. Friend A decided we should do this activity and Friend B agreed on it. I personally found it a waste of money, but considering how we haven't met in a while, I let it go. Friend B studies abroad and is back without her local phone number as she is here with her other phone which she uses in the country she's studying there at.

I don't really understand her financial situation as she is well off enough to have a house at another country and is living well, but I guess there is a complicated family situation here which resulted to her staying in friend C's apartment (who would have joined the hangout, but can't due to classes and an upcoming school trip).

On the day of the hangout, Friend B asked me to transfer some money into her account for her to pay for a ride there. Then needed me to buy the tickets as she is unable to (and I'm assuming she doesn't have the money either). Throughout the entire hangout, she needed me to hotspot for her phone as she is using her number from the country she's doing her studies at (when I came home, I realized I had no more data because of that). Also needed me to pay for her meal (lunch and dinner), pay for her ride back home, and help her wire money to someone I don't know.

I did find her way of requesting pretty direct, and her constant borrowing of money did bother me. She then said she would be able to pay it back by mid february before she goes back to school. But honestly I have a feeling she won't pay back considering her past record.

I'm not sure how I should cope with this. Normally it would have been fine as we would have future hangouts and she could just pay for things in return. But the day after the hangout, she says she has a trip with her family, so we probably wouldn't meet. So when should I start asking her to pay me back? She's leaving around 18-20 february and promises to pay me back mid february without a specific date in mind.