Do not put up with bad behavior of your partner’s circle of friends
Respect yourself and do not tolerate wrong treatment from your partner’s family or friends. Respect your partner and their closest people, but always remind them that you deserve to be treated well. No one has any right to abuse or humiliate you.
Do not betray your principles and beliefs
Your beliefs as well as principles may be really sacred. If they are important and you cannot compromise them, then do not change anything. The very core stuff of things should not be changed even if your partner says you should do this for them.