Mom thinks my bf doesn't treat me well when we don't come around her house

Natalie • Wife | Teacher | Mama | Small Business Owner | Coach
So, me and my boyfriend have been together for a little over a year. We've been best friends for years before we even began dating. Long story short, he's liked me for a while and I finally gave him and chance and it's been good. We've been through some rough patches and all couples do but now we're happier than ever. But he works full time with GA road transportation and has his own lawn and tree service with his dad so he's always working. I have work and full time college classes so I'm always busy. And always not at home bc I take every chance I get  to go see him or he comes and sees me. My mom, thinks he treats me bad bc his house is on my way home and I prefer going to my house over his so I offer to let him ride with me and mom thinks he's making me drive him. {tried explaining this to her} she doesn't listen. Okay here's #2 reason why, she thinks I pay for everything. Whereas I do believe a girl should pay for somethings, but not everything. I literally haven't paid for a single meal of ours for months. And he fills up my gas tank all the time. #3 since he works all the time, mom thinks he's gonna leave me with kids all the time and go to work.
Me and my bf are wonderful right now, but it's bothering him bc he thinks I'm going to believe her and leave him. How do I get my mom to stop saying this stuff? She's making the rest of my family believe the same way. 🙄