Mother in law problems

So I have been married to my husband for a year, when we first met we were both young i was 17 and he was almost 18 and his mother and step father kicked him out of the house only because he turned 18. He had no where to go and my dad wouldn’t let him stay with me since I was only 17 so he stayed with my sister for a few weeks and then my mother and I decided to live with my mother so he moved in with my dad. My family never made him pay a dime and always opened their homes to him. We got married when we got out of high school and turned 18 (now we have our own home and is completely financially stable) but his mother is driving me absolutely crazy. I don’t have much for her because she kicked her own child out of her home and she acts like mother of the year but then she texts my husband and acts like I’m the worst person because I don’t go to her house every day to go see her, I’ve been taking him to their house in the morning so he can ride to work with his stepdad and his mother acts like I’m so horrible because apparently I don’t even look at her when I drop him off, I drop him off at 6:00 am and I head to work. I’m barely awake at this time and I’m just focused on getting to work. She knows where we live and hasn’t made any effort to come see us and we’ve lived here since February. She has two other sons and me and my husband do everything for them if they need to go somewhere she calls us and asks us to take them, her whole life revolves around her husband. Well yesterday my husband asked her to help us pick up a table for my sister or to let us use her truck to get it ourselves since we don’t have one and after offering to fill it up with gas and everything she absolutely refused. She said it was because she doesn’t like my family and refuses to do anything for them because of how they are, when my family literally gave her son a place to live when he would’ve been living in the streets. Then she goes on again about how I never go see her and how I must hate her and basically how horrible of a daughter in law I am, my husband stands up for me and she continues to do it. I know she’s his mother and all but I absolutely cannot stand this woman. I want to have a good relationship with her and I have made an effort but I’m tired of continuously being talked down on when I’ve done more for her son than she has his entire life.