My (23F) boyfriend (32M) told me I look like I've been injected with heroin. I'm really hurt.

This happened a few days ago. My boyfriend, Luke, always gives me critical and harsh remarks about my appearance. It really started to bother me and I told him to stop because I feel very damaged and hurt whenever he talks down on my appearance. <br><br>But he didn't stop. Three days ago, we went out to eat and I got a new hair dye which is an ombre blue/lavender color. Luke told me that I look like I've been injected with blue black ink as to really emphasize his point. I was very hurt and went to the restroom to give myself a mini breakdown. <br><br>When we went back home, I asked that we have a discussion but he said I was being over sensitive and he was just kidding around. I told him that joking wasn't any help because his remarks affected me deeply. He just shrugged me off and told me I was too sensitive.<br><br>I am not too sensitive, I'm just very vulnerable about my appearance. I've been self-conscious for a long time because of my weight (I'm not underweight or overweight, but somewhere in the middle) and my skin. But for the past few months, it feels like no matter how I dress, wear my hair or even do my makeup, it's never right. It's affecting my confidence in ourselves as a couple and our relationship as a whole. I don't know what should I do.<br><br>Tl;dr: my boyfriend always gives me negative comments about my appearance and it's really affecting my self esteem. I'm hurt and I don't know what I should do.