I'm going to tell my depressed friend I can't keep helping her. What would you do if you were me?
Are you going to give her a reason?
She would always bail me out when I was down and she would treat me as some kind of savior everytime.
If she's depressed she needs you now more than ever. It would be so selfish and cruel of you to abandon her now.
I'm thinking too hard, I'm just going to forget about her and move on.
You need to be a better friend and part of being a better friend is sticking to them in tough times and being there for them.