Boyfriend ( baby father )

He’s never here, he’s gone early come back late, he’s not working anymore he don’t pay me a penny for anything! Yet he just said he’s going to a car auction with his mate, I’m the one up all night with baby while he sleeps, he’s taking the piss now, I’m on my own with the baby all the time, I pay for absolutely everything he does nothing! I told him he he’s late tonight it’s over and not to come back but it’s late now and he’s still not back so he does not care one bit! How do I be strong and not answer the door to him ! Can’t go on like this anymore it’s been 11 years and he’s been like it for ages now! Then I find out he’s brought a car but tells me he has no money