Should me and my B/F still be together?

We have been together for about 4 years, and we have a 8 month old baby. He is a lot older then me and is "stuck in his ways". We have lived together for a year and a half. And I love him so much but it seems we fight over the dumbest things, and I really hate the way he talks to me most of the time. I have 3 older children that live with us and I don't want them to think it is ok to treat people the way he treats me, but I don't want my youngest son to grow up with out his dad. And I really do love him and want to make this work. What can I do to change the way he talks to me, or is it a lost cause and I should just cut my ties?