Advice

Has anyone has some serious problems between their mother and their boyfriend? My mom and boyfriends but heads a lot and my mom is a pretty toxic person at moments. However, my boyfriend is also very stubborn in his ways and believes in order to have a healthier lifestyle, we need to cut off toxic people. Does anyone have advice about this? I feel so conflicted and want my family around but when they are, it turns into an argument about my boyfriend.