<human>: Some background 

It's me (20F) my sister (18F) and my parents. We had a great childhood and I was always close with my parents especially my mum. 

Ocassionally our parents would take us to this place where me and my sister would run up and down the stairs and climb the window seal. My Parents would see a dr and just talk about boring stuff. I was young and didn't understand my dad was going to counselling because of depression and anxiety issue he has always struggled with.

Reality hit when my sister was diagnosed with depression in 2008 and I learnt about other mental issues my family has dealt with. My mum is a strong women dealing with all this but it slowly broke her. My sister's not to bad anymore, counseling and other factors have helped.

I moved in with my boyfriend of 2 years 8 months ago. Things have been going great for me. My boyfriend is loving and supportive and I have a great job. Back home my family has been struggling. Due to the new budget cut in AUS my mum lost her job and my dad decided to quit his job. My mum has been stressing about money but my dad thinks it will be fine. He only realised how bad there situation is lately after my mum threaten to leave. Everytime I see my mum she breaks down and crys. She is loosing it after holding it together for so long. I'm angry at my dad for letting things get this way. Mum suggested coupple counselling but dad refuses to see a problem. My mum texts me random things that worrys me. The lastest one 

Mum: look after your sister no matter what, promise?

Me: what's wrong?

Mum: nothing just promise me ok. You need eachother

Can you give me the gist of the text in a nutshell?
<bot>: my dad fails to see he is breaking my family with his chocies, quitting his job and although my mum is seeing a mental health nurse she is struggling to hold it together, crys alot.