Below i am sharing the best advice on What i do when my boyfriends mom talks bad about me.

If your boyfriend's mother is talking badly about you, it may be helpful to have a calm and open conversation with your boyfriend about the situation. Let him know how you are feeling and try to express your perspective on the situation. 

He may be able to help mediate and communicate with his mother on your behalf. It is important to remember that everyone is entitled to their own opinions, and it may be best to try not to let the comments bother you too much.

If the situation becomes unbearable, it may be best to distance yourself from the situation and focus on your relationship with your boyfriend. Remember to prioritize your own mental health and well-being. 

It may also be helpful to talk to a therapist or close friend about your feelings and how to best handle the situation.

If the situation continues to escalate, it may be necessary to limit your interactions with your boyfriend's mother or to seek support from a professional mediator. It is important to communicate openly and honestly with your boyfriend and to work together to find a resolution that is fair and respectful for everyone involved.