<human>: Give me a shortened version of the text

My bf and I have been dating for about 2 yrs, but living together for about 6 months now. He's not a big fan of social media and neither am I cuz to us fighting over social media is just petty. Before we started dating he had posted up pictures with previous flings and gfs. However, the entire time we've been together he's never taken a nice pic of us to post online. (Our friends and parents know we're dating so he's not trying to hide the relationship). I never really cared if he does or not, but the times he hangs out with his friends (guys and girls) when I'm not there he posts up pics from that night. The first few times it wasn't a big deal, but by the 5th 6th time it's getting to me. It's not a requirement that he posts stuff about us, but it does upset me and makes me feel like im not important enough to him to make it to his page or that hes ashamed of me. (if anyone's wondering, I'm your average good looking girl). I brought it up once before and he just called me immature for arguing with him about something so petty like fb. Other than this the relationship is fine. Have I become that petty or are my concerns legitimite?
<bot>: Bf has pics of friends and previous flings posted online but never felt the need to put up pics of us (2 year relationship)