You have the same problem than me. You are picking the wrong option, don't choose the dialogue where you say smth like "so what now" say the other thing about trust, there you can try to make her trust you. You have a "love" route and the other she just let you addicted to her basicallyHow do I romance Mei Mei? Anytime I try her route, it has always ended with her being jealous of the MC's strength(after the fight with BH).