How to treat Yan Xiaoxi in Chasing the Ball?

I think Yan Xiaoxi in Chasing the Ball is very pitiful, which gives people a feeling of heartache.

When I was watching this TV series, I was really furious. What I can't accept most is that Qi Haojing threatened Yan Xiaoxi with breaking up, but Yan Xiaoxi didn't know the truth, thinking that he had done something wrong and kept blaming himself every night. This makes me really distressed.