How can I handle this?

Someone I love very much calls every day and more than half the time it’s to simply vent to me about things I can’t do anything about. It’s some pretty serious and frustrating stuff too. For example, she finally started receiving $200 a month in child support and the state promptly stopped assisting her with her child care, to the tune of about $400 a month.
Her car has some serious issues she doesn’t have the money to fix.
She needs new tires that she can’t afford.
She works so, so hard, 6 days a week, sometimes 7 and she can’t get ahead.
And in the end she begins to cry and it just rips my heart out.

I don’t know how to handle this. I feel so helpless and sad.