Feeling unappreciated everyday!

Just need to vent. I’m feeling so down. I’m married with 3 beautiful kids. I feel like a single married mom. It’s always just me and the kids, we do everything together. Just me and my kiddos and no dad when we do fun things. I’m a SHAM I carry the mental load, housework, kids activities, and everything else. I have zero time for myself and when I do take some time I feel guilty with the comments my husband makes like ohh am I babysitting. Or when he’s home an a school day and I ask him what his plans are he’ll say ohh do you need me to drive the kids to school and skip the gym. It’s the comments that kill me. It makes me feel so sad. He thinks I’m living the dream not having to work. I’ve been like this for over 10 years. Meanwhile he works, never has to ask when he leaves the house, goes to workout 3-4 hours a day! I think that’s the tip of the iceberg! Today is Sunday, family day and he left us this morning to workout from 7am until 11:30…. I know he was at the gym he’s there every morning. He’s so infatuated by losing weight and looking good it’s taking a toll. He keeps saying he wants to reach a goal then he’ll change his schedule to an hour a day! His s he dyke has been like this for 3 years. I can’t handle it and when I bring it up he makes me feel so bad and it just turns into an argument. I’m silently crippled inside. I don’t know what to do.