*Requested*
- Isabelle doesn't like being jealous
- She can get a bit territorial
- If it's some random person flirting with you while you're out on a job or just for fun then she'll glare at them
- Get extra handsy with you in front of them
- If it's someone who works at the institute with you guys then she'll make a show about kissing you when she knows they're nearby
- Alec usually ends up seeing too
- Which leads to him asking you to stop making out with his sister everywhere
- Sometimes Jace likes to flirt with you in front of Isabelle just to annoy her
- It takes a while for you to finally figure out when she's jealous
- You try to talk to her about it but she denies it
- You leave it alone because really, it's kind of hot when she gets jealous
- One time a big biker guy tried flirting with you and she kicked his ass
- She could see you proudly smirking at her