Relationships are too stressful

So me and my bf moved put 3 weeks ago and today his mother was goin to come over for lunch for only the 2nd time. She came once before we moved in and hated it saying its like this and that anyways i get up at 6,clean up,mop ,make the place look as pristine as possible and then my bf in an angry moody way tells me he called his mum and told her not to come. I asked him why and he says hes not comfortable.

Our home is not in a great condition we poor but its neat tidy and comfy. We ended up having a huge fight about this and i told him i want to leave and he said if i want to go i can leave. I know he doesnt mean it and says it when hes angry but im getting fed up of him and his mother issues. BTW his mum is a nightmare