My boyfriend rarely posts us, and everytime he does it’s an bad picture of me

What is everyone’s input on this?? I’m a 25F and my boyfriend is a 27M , we’ve been together for months now , getting to know him I understand that he doesn’t want to post a lot because he just doesn’t which there’s nothing wrong with that. But everytime we take a nice picture I throw in you should post that one:) and he immediately gets shady and asks “Why?” Or you could tell he resents the idea. Deep down I feel like it might be an insecurity. he takes a picture of me and I ask him to retake it because it’s super blurry and let’s post a nice one he gets upset?? He only posts us once every few months so I feel like he should post a nice picture not a blurry or a bad angle. And everytime he does it’s not a good picture. The other day we got into a heated argument because it hurt my feelings that he always puts the worst looking version of me on the internet when we have plenty of nicer pictures but posts the worst ones whenever he feels like it. I told him it made me feel bad because that’s the kind of version he likes to put out there of me, and he reacted really mean and didn’t even consider how I felt. How do I make him understand how I feel that I hate when he purposely takes horrible pictures of me, and have him compromise and take nicer pictures ?