breakup

How do yu breakup with someone?, I don’t even know but I can’t do this anymore he is a huge useless piece of shit, hardly helps out with our daughter and if he does he acts as if he did such a big job like she’s 15 months and he has not ONCE got up with her during the night, and when his other two kids come down (13&11) their stuck up my ass, I’m the one making them food and doing things with them while he sits on his computer, I can’t do it anymore I’m dating a fucking child, we have been together 5 years and he stilll talks about his ex all the time, I can’t just leave because this is my house it’s my grandparents house so he would have to leave

Yes I’ve told him how I felt and he doesn’t care he just ignores me, i haven told him more then once over the past year