My ex is asking me for money?

My ex wants me to pay her $20 because of her kids (no we aren’t living together) .. and I asked if I could see her today and she told me today wasn’t a good day for it.

I have always given her money for her and her kids when we were together for 3 months. Last time we seen each other I even gave her weed and paid all the Ubers and food because she’s broke.
I’ve always been that best friend or partner for her when she really needed someone. But now that I want to see her again after a few days or more, she told me she wasn’t feeling it today to go anywhere but wants money.

What do I do? Give her money anyway? She doesn’t work
My ex is asking me for money?
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