C39 Domineering and gentle

I shrunk into Long Yanting's embrace and thought: At that time, could it be that he couldn't like me and fell for my sister? The cold indifference of being married for three years, was it because of that vow, because I was afraid that I would not be able to obtain happiness, so I didn't dare to get close even if I was in close proximity? Did he love his sister more or..