I've only known one person to be jealous of me. Another person in our circle pointed it out. I thought we were close. However:
She didn't like people to be friends with her friends, so she would sabotage those relationships.
She felt that I got attention from men because I was light skin. She said this out loud in front of a male friend who repeated it to me.
When a mutual friend tried to connect me with a guy, she intentionally got in the mix. After that, I started to notice that she would dance with every single guy in our circle when we went out. She would still get angry when random men (men she probably wouldn't even give a second glance to) would approach.
She even once reach out to ask permission to date a college lover (I was a bit of a undercover player in college and my crew knew it/all my dirt). I told her no, but suspect she/he had hooked up at a party cause she always talked about how much he and I didn't "fit". He was buff frat boy and I was a plus sized nobody. She used to flirt with him shamelessly cause she was in the sister sorority and then be peeved when she found out he was in my dorm room later that night. It didn't matter to her that 1. I met him first and 2. I had a full school year training him
before she even knew he existed.
It was an overall toxic friendship. Time and distance allowed me to nix that friendship. I ignore all birthday, holiday calls/texts/emails. When she comes to town, everyone knows I won't be coming around. Prior to that I stopped traveling back home at the same time she did and stopped doing the carnival circuit we used to do together.
She had halitosis we tried to tell her about. Offer her gum, told her about brushing her tongue.
She was an angry drunk and got drunk practically every social event.
Her philosophy was that she was never wrong about anything and felt no need to apologize ever.