<human>: Condense the text into a few key points

My SO and I have been together for 5years. I'm living with him together with his mom. (he's an only child) because my work is just 1 bus away. I'm also helping him financially as he is the breadwinner of the family and he's salary is too short to live it off. So he pays all the bills, groceries, etc. I also help with the groceries as I'm living with them. Doesn't want me to pay the rent. I earn more than him (doubled)

Now, since I also help my SO with his daily allowance (food, transpo). I told him I want to buy a car as he always takes the taxi going to the office.. He doesn't want to deal with the train because it's too crowded. So he told me one day, he'll extend his budget to transpo because he'll take a taxi going to the office everday. It was okay for me but now I'm considering to buy a car instead as this will be a + for me and him... He just said that you know what should be bought 1st. (He' thinking of a buying a house for us, the house they are living now is from his stepdad).

 The thing is, i'm not going to ask him for money, it will be my expenses but I think he's planning that the money I save? Will be going to the house? he is planning to buy..  I have my own savings account.. And i think he thinks he owns it too now...

How should I tell him? What should I tell him?
<bot>: SO implies that it's not the time to buy a car yet.. Need to buy a house first with the savings I had before to start it off.