Uhh ohh

So I know I must be crazy I told my boyfriend that I wanted to wait till we get married to have sex again.... We've been having sex for 7-8 months. I have two children from a previous marriage. But I know this man is for me and we have such a strong bind and if things get rocky we come together. Have the same big picture and drive to get there our sex is amazing. But our relationship has its faults to and I think by waiting well become stronger and. Be 100% comfortable with each other I just think it will strengthen our foundation... He thinks I'm crazy and it will make us start to fall apart we are adult not 18 year old kids.... Uhh now hes all upset which was not what I was expecting am I crazy or how can I explain it better to him?