Consent is the foundation of any social life, especially in marriage. Many people believe that without consent, there is no point in continuing the relationship. Of course, consent is a foundation that should not be played with.
Consent is built in the long run, but it can be destroyed in a few moments. For this reason, it is good for each of you to know the limits of your brother's interactions, so that no one will encroach on the other's garden. If you are on the same page; then it is easier to understand each other's behavior and build lasting consent.