Now that I think of it, how long has Fuji known Su Luxia? Hasn't it been less than a week? This kind of insta-love isn't very realistic, and if she turns him down it'll probably be with an excuse that they only met recently and she doesn't know him that well yet, and since she has recently had a bad break-up she doesn't want to make Fuji a rebound and would prefer to wait until she's sure her feelings are genuine and not from break-up sadness.
I can tell the guy is a sadist. His affection meter rose when they met because she was lashed out as her ex-fiancé, and now he's happy he could use her as an excuse to be a white knight and lash out at the ex-fiancé. I think Fuji has a rivalry with the ex, maybe?