If that was said to me, the only move I'd make is dumping the chump.
Don't let him bring you down. This world has so much body shaming, it's disgusting.
I'll be honest with you, I am flat chested, small bum and to quote someone "scrawny". I eat badly, I don't exercise at all.. I just have a fast metabolism. A guy once asked me what it was like to have a vagina on a man's body. I smiled sweetly, dumped a pitcher of beer over his head and said very loudly, "this guy wanted to see a wet pussy... Anyone have a mirror?"
I've been offered breast implants to help my self esteem.... I don't have problems with my self esteem. I like the way I am.
And if anyone points out my small bumps, I tell them quite simply that I don't have big boobs or a big bum because I got a high IQ and long legs.