bf doesn't like me talking about a future in front of his friends

McKayla

so backstory. a few weeks ago I was drunk and accidentally called him my husband in front of his friends. yesterday, he told me he has a problem with me talking about him being my husband and having kids together someday. hes told me in private that he wants that with me but never mentions it in front of others. he'll gladly talk about our sex life with them but not getting married to me. am I overreacting when I say I get insecure that he doesn't want me talking about it??