My mother as my sister just called and told me has been fired from her job and may end up homeless.

Most would feel bad but I sit here smiling happy that what she did has finally come back to her.

You see growing up she blamed me for everything, saying I made up my depression and all this. I was nothing but a waste of money. We'd yell at each other she'd throw things at me..You can see why I dont like her.
I ended up stuck living with her when my parents split up when i was 16. She acted still like I was dirt, I had to make my own doctors appointments and go by bus cause she wouldnt take me.

anyways, about a week before I turned 18 I had a cold and wasnt feeling well, she texted me from work asking if I was out job hunting. I said no cause I wasnt feeling well, and she got mad. a few texts laterI was homeless she had thrown me out. Luckily my boyfriend(now husband) took me in. (I'm now 19 by the way)

So after all of that am I supposed to feel bad for her situation because she's my mother? Or is it okay for me to smile in her misfortune.