Thais doesn’t get jealous, not really. If anything, she derives joy from seeing you with others and watching you get passed around.
However this is assuming that you come back to her every day. If you don’t return to her and only hang around with other people, it will get to her little by little until she can’t handle it anymore. Aren’t you hers? Why do you avoid spending time with her?
She’ll be sulky, distancing herself from you as she wonders what exactly happened to make you not want her anymore while trying to come up with a way to bring this up to you. Regardless of how you treat her, you’re very dear to her still. If you want to cut things off with her then she’ll accept so long as it makes you happy, but she doesn’t want to make you feel bad for doing so in the process.
…Okay, well, she does want you to feel a tiny bit bad about it. But not too much because she really doesn’t want you to be upset.
She won’t seek you out for the most part unless it’s a situation where you need her, such as when you’re very distressed or your life is in danger. Unless you’re fine with waiting for a month — at which point she’ll finally come to you to discuss your relationship — you’ll have to be the one that seeks her out and talks with her first.
If you reassure and tell her that you still love her, she’ll be happy. She doesn’t mind it if things don’t go back to how they were before, but she will be a bit clingy and pouty; teasing you about how much fun you must have had with the other person while her arms are wrapped tight around you.
You’ll have to go to work or to lectures while having her wrapped around your torso as well so be prepared for that.