Best friend or not

So sorry it's long,but I nee your advice. I need you to read this slowly so you can understand. My ex best friend (that's what she is now) had a boyfriend and I didn't. She made sure to rub it in. I'm not saying you shouldn't take your boyfriend important and not love him,but she takes more important than her parents and he was actually just playing her. I never knew he had a crush on me. So,the boyfriend asked for my nude pictures. And when I told my best friend,she didn't believe me. She just accused me of wanting to ruin her good relationship. I left that. Well,he's been thinking of breaking up with her and I begged him not to. Few weeks later,I was pissed. The idiot had the guts to come ask if she has a new boyfriend. I wanted to rub it in and let him know he lost something good. I told him she'd soon have one,she easily gets. Can you imagine the ex told her I said shit about her and stuff. She was blindly in love. Instead of asking me what I said and why I said it. She told me I was a liar,a bad friend,a pretender and all sorts of very bad names. I actually said nothing. Because she was stupid to think I'd say shit about her to her boyfriend. We've known each other since like forever and she has actually fought with all her female friends for trying to steal her boyfriend. She's just 18. She told me she never wanted to talk to me. That was a few months ago. I confronted her a few days ago. She found out her ex had two other girlfriends and just wanted to fuck. Her apology sounded so fake. I'm like the last person you should fight with cuz of a guy,that's sad. Conversations just feel weird I'll be honest. Am I bad or should I feel guilty if I don't wanna be close to her or anything again. This is the second time. She's proud bitchy and thinks I'm stupid for being friendly to waiters and for smiling or taking pictures with them. I hate it when people are downgraded. I'm kinda from a rich home,but I don't show it cuz I talk to everyone. She doesn't and we always fight because of that. Mainly because I give out food to the hungry or friends with waiters and waitresses. I don't ever want to talk to her again. She didn't even pick my calls the next day's the fight happened and she lied that she forgot about it that day. P.S,her mom is the same. She beats girls up for trying to steal her husband when he works with students.