TRIGGER WARNING - TALK OF PREGNANCY LOSS

So since my MMC at the start of June, I hate my body. It still feels as though my bump is there, when I know he’s gone. I’ve never felt insecure about myself, but I’m 2 dress sizes bigger than I was and my partner just tells me “insecurity is unattractive.” I’ve told him I need to feel reassured. But still nothing. At the same time, I don’t want to lose the weight, or go back to normal, I don’t want it to be like he never existed. Anyone else felt like this?