I need to vent. Any advice would be great

Hello ladies I'm a 28 women that has a six year old and have been with a man for a little over a year now and he has taken on the role as dad to my son and is great most days. Some days I just never feel good I'm stomach hurts and all I wanna do is lay in bed. I have pcos and have gained 60 pounds since we got together. I only work 20 hours every two weeks so I can stay home with my son and take him to his sports and what not. I clean the house I do the laundry I cook and even serve him every day or when he ask me to run errands I do it. We are building a house together right now and he is great but some days I just feel like he uses me to do everything for him. I pick up his clothes i even showered him a few times because he was tired and i even cut his toenails if he wants it done. I have not felt great all week and his response is well if you would loose weight and work more and get out of the house you would feel better. Well if I try to get out of the house its I dont have money for you to run and do this or that. He always says i think I you are pretty but i just dont wanna have sex like we used to because of your weight . If i dont do something it's you dont love me or why dont you just leave. Please can someone explain to me how he could love me as he says he does but never show me unless I do something for him?