Overreacting ?!

so i just wanna know if i have the right to be mad at my boyfriend .. so let me start at the beginning. i went on his instagram & noticed that he took down every single one of our pictures like he's ashamed of our relationship or something. then he said he wanted to delete his instagram. so that way he only had facebook. but like why would you take down our pictures? i feel like he's hiding something but i don't wanna ask & argue is it stupid for me to get mad ? am i just overreacting? or what. can someone help me ? i'd really appreciate it.