What do you do if your close friend CONSTANTLY asks for help!

Sorry for my rant:

My mom friend just became a single mom after her hubby went to jail recently in the summer. Then she’s not talking to her family and had a fall out with them. In July, she found out their home was being repossessed but they hadn’t given her a set date. She also started staying at a friend’s house during the week where her kids were going to school. Back in July, I gave her advice and told her to pack everything in boxes and move many things so that when the bank asks her to move, she’s ready. Her kids have been going to school from 8-5pm since August which means she’s been free on those days. But yesterday she asked if I can go help her pack over the weekends and I’m wondering why she waited till now when she knew this moment would come. I understand all the problems she’s gone thru and I’ve tried to support her from sending groceries, watching over kids for several hours when she has stuff to take care of. She also asked if I can do a joint birthday party for her kid and mine and she said she would pay half but my family offered to do it and we would cover the costs but I kinda feel like asking to help pack when you had 3 months is…. Considering I also helped her pack and move from her last house. I even brought my babysitter who watched the kids while I helped her pack. She lives 40 minutes away! I never ask for help mostly because I am just looking for a friendship but I feel like I’m my friend’s only go to- emotionally and for help.

Am I being unreasonable? Would you just do it anyway considering she’s going thru a lot or…?

Thanks a lot