i thought it'd be at 90 but after thinking about it makes sense it's at 76. He hasn't fully gotten to know her and hasn't been with her much, in fact its impressive bro is at 76. I feel like 80 and above is where they fully trust them with their life and would quite literally do anything for them. We do see Callisto giving a knife to her like threaten him but I think he was mostly teasing (mostly is the key term here). I think it's because her mind is muddled thinking he has a crush on her that's all is because she has a number thats literally 96% and she probably thinks it's low kinda. If she were to hang out/ meet him more times i think it could get over to 90 as long as she is honest but i like it better if it's more natural.