Outsiders opinion

Taylor • Happily married! Pregnant for 1st baby!!
I need an unbiased outsiders honest opinion. I'm having a serious battle with my.."best friend". She is dating my husband's best friend and since they started dating it's been chaos. Me and my husband had our share in causing drama but when we did we were actually going through serious problems that would've cause our marriage to crumble but because we were married and we loved each other we refused to give up. So basically we had a fall out this past weekend. my friend bf decided to ask my husband about a previous relationship my friend had before him. He told him he didn't want to start nothing he already knows what happens. Well he told her that my husband was running his mouth and next thing you know she turns her bf on my husband blaming it on him. Now my husband had a broken jaw that caused an infection that almost killed him. I don't like when people joke about it and neither does my husband it's not funny it never will be. His friend decided to hit him low and make a joke about it so I snapped and cussed him out saying you know not to joke about that. He got angry and violent started throwing things hitting cars throwing beer throwing a huge tantrum. Basically my husband and him ended up brawling out unfortunately my husband was very drunk and wasn't in the mind state to fight he could barley walk and his friend took advantage of that and banged him up a bit. The whole reason the fight happend was because he was looking for his truck keys that his gf my friend had in her pocket the whole time keeping them from him so he wouldn't do anything stupid when he just wanted to leave. It was a complete mess. Now she is trying to tell me that my husband started it and just started taking all kinds of shit to her about this guy which I found out wasn't true. ( I didn't tune in until I heard his friend make a joke about his jaw). Now she's trying to bash my relationship and say I let him control me blah blah blah when she and her bf always cause problems. We have even been told by a lot of friends that they won't go anywhere they are. They are always lying to each other using me and my husband to lie for them. They are always fighting they always talk shit about each other then one minute their talking about how happy and in love they are. It's never ending and I'm exhausted and just tired of the bullshit. I'm an adult married with a man I love and we are TTC. I don't want stress and I feel like they are the only stress we have. Am I wrong even though it's been 7 years to cut off ties with her because I feel she is truly u healthy for me?