Tired of living with my Father in law😤

So I’m in a 10 year relationship with the father of my 3 children. But the problem is that since I moved in with him we have been living with his dad. At first it was because we couldn’t afford an apartment for ourselves. We share bills and rent. The most annoying thing is that from a couple of years now he doesn’t pay for food that I buy and cook. So basically he has been eating for free for years. It’s so annoying that I have to be picking after him all the time. I’m so fucking tired. He said we are moving out soon but I don’t believe him. Don’t I deserve my own place to my self.