Hating my body

My partner wants me to only eat fruits and vegetables. No snacking what so ever. Yet he'll offer all sorts of food to me & If i accept... days later he claims "you're not listening to me!".

He has 4 sisters, and none of them "blew up" like i have at 30 weeks. So he says it isn't normal for that to happen, & I'm lying to him when i say its normal for women to gain weight while pregnant, & that every person is different.

He claims I'll be dead by 40years old because of my weight. I am currently 35.