Honest opinion of what I could or should do ?! H E L P !

Every relationship isn’t perfect , & I’m sure a lot of couple goes through things.. my point I’m trying to get at is my boyfriend n my sister & bother exchanged a few words to each other & it wasn’t nice nor pretty... my boyfriend wanted to fight my brother & called my sister names ,& she called him names back. My sister done got mad because she seen him texting me and told my mom about it ,& they got all upset at me. Yes I called my sister over to help me for backup just in case other things had happened but I didn’t expect what happened🤦🏽‍♀️