You don’t need to tell anyone except yourself that “honey, GROW UP”. Act mature, talk to your husband and if possible even your inlaws about all that you shared with us. Tell them you concerns and you already said they r sweet people so i am sure they wl understand.
Why do we always think running away from an issue is the only solution? Do you think you can be happy if your husband is not happy? And how can your husband be happy if you have issues with having his parents live with u guys?.