Look at it very keenly.
1) You just met online. You have not physically met. You have known each other for less than a week.
2) She has nuclear family,extended family,friends,associates etc. Has she exhausted all those options? No.
3) You are not even sure how she looks like. She may be a different person from pics on Tinder.
4) Once you give the loan how will you ensure she repays whether in cash or Kind.
5) once you send the money are you sure the date will be honoured. You do not know her place or house. You are strictly online pals.
6) i have had several such experiences even with women i have met who postpone dates then try the same trick. They avoid meeting. Some even begin asking for fare on the day of the date or claim uende mtaa yao instead of meeting in town. They know men who look for women online are at times weak or inadequate. So they try various forms of emotional blackmail. That you fear to say no because she will refuse your date.
7) In this online relationships be very firm. Set the ground rules. You do not run a charity. When you meet be very keen to discern what she wants. Some want cash. Some want a good time e.g. drinks and food. Most may have what they want from you and give you none of what you want if you are not serious.
8) Finally get a dedicated line for this online dates. Be very forward saa ingine even on phone ask for a shag. Then utajionea.