crappy relationship

me and my boyfriend of 8 months both texted and flirted with other people for the first 1-3 months of the relationship because we weren’t ready. we were to dumb to realize at the time but when we found out about it we decided to delete snapchat and deleted all people off of our instagram that were of the opposite sex and people’s numbers. it’s been 5 months since either of us did anything wrong so we downloaded snapchat back and instagram and i told him i think we should be able to have people of the opposite sex on there and be friends with them because we can’t control each other or the relationship won’t work but he said everyone will agree that i’m wrong. so i’m just asking for some opinions