I think it should be true, because Wen Jianting (Tingzi, Xiaomei's cousin) uploaded a photo with Chengbao on her campus network, and there was a message from Chengbao, and the signature looked like Chengbao's words.

Landlord, you should thank the law in China now-consanguineous marriage is not allowed! Hehe, that's beside the point:-)

You can also go to Tingzi's post bar and ask!

Thank you.