Show your support
I’ll be more concern if they don’t celebrate you when you achieve something good in your life or seem happy for you. This is something that keeps me 100 away from people and has lost many friends on the way. If you are always there for them, but you don’t get the same in return, I’ll be concern. Also constantly seen the negative in your life than the good.
Just negative energy from them. Never happy about any of your achievements/successes. Downplays everything. Or keeps making the same comments every time you see them related to a certain subject (like your weight) etc. I had a close friend jealous of my weight, my shape. She went from a size 6 to a size 14 (and nothing wrong w that, I met her PP so that’s all I knew how she looked like) but every time she saw me it was “woah kel you look like you’ve lost weight! I think I lost 2kg too! Can you see it?” And I’d be like, have you? Great for you babe! And she’d scroll her old photos again and show me what she used to look like “I used to be so skinny” and I’ve seen these pics a thousand times before, the other thousand times she showed me. She’d ask me what I’ve been doing, I tell her, and then the next day would invite me to an all-you-can-eat buffet and she’d get upset when I didn’t go because I already told her, I don’t go to buffets. She’ll go to a buffet weekly.
Sly digs/comments they may make about you, putting you down or mocking your clothes/appearance and trying to play it off as a joke, belittling your achievements etc. Basically you would just know as most people who are jealous it seethes out of their very being and words, they can’t help it, it overcomes them lol