Facebook Drama & Jealousy btwn girl cousins! A little long!?

i been getting weird vibes from my brother lately. i just feel like hes been giving me a lot of bullshit. it all started when he betrayed me over my cousin in August. Didn't make sense why he deleted me and not our cousin bc she was the one at fault for talking a lot of smack about my new relationship. she was just jealous. So i accused my brother that he cared more about her than me. Then 2 weeks later, Halloween week, my bro told me she attempted suicide; obviously this is worst time in her life bc well, emotionally she's just a mess right now. I believed him but still didnt feel justified for it I would never pick someone else's side bc it hurts ppl's feelings. So I thought something was up. Now, we're in Novemember, I read on Facebook that my uncle, which is my cousins dad, inherited a business; when my cousin brags on Facebook that she is now "heiress" of her new company then she goes on to tell my brother that she is gng to fly my brother in one day to see her. of course that pisses me off so i immediately called my brother and he says im overracting that it was just a joke. but i still do not believe him bc i been getting weird vibes just by the way hes been talking to me thru text like he was better than me. And mind you, this was the lowest point of my life. No job, I had absolutely no money at all coming in. So his behavior causes a lot of arguments between us he disrespected me so badly calling me insecure, hanging up on me w/ words in my mouth, cursing during an argument, threatening to delete me off fb and never seeing pics of my nephew again. i always thoguht he was WAY out of line all pissed off but he was flying off the handle. then again, few days later he calls and tells me he was at the brink of a divorce after 13years which probably explains reasons for his behavior. and i could really really tell that was the honest to god truth! At least WAY better than using my cousins situation as an excuse! Weird thing is after showing my brother proof on Fb that my cousin was jealous of my new relationship, I deleted both of them bc I still didnt want to read their conversations. Out of sight out of mind but the way I did it, it pissed my brother off and my it even pissed my cousin off even more because I proved her WRONG! So that's when my brother reacted and told my cousin MY SECRETS! She even tweeted about them and I became sooo FURIOIUS!!! but I ignored the problem at this point but couple days later not sure what happened but my cousin ended up deleting her Fb AND her twitter!! Almost like a embarment reaction bc at the rate my cousin was gng, she didnt look like she was backing down at all she hates me so much she wishes i was probably dead!!! So for her to delete her Facebook I wonder what must've happened. what do you all think you think my brother told her something? should I trust my brother that all it was, was just stress from his own life bc he was close to a divorce early November or should I just wait for my brother to reach out to me? bc he did send me xmas post cards and he did accept my friendshp back on Fb but hes really been laying low. What do I do??