The invisible influence Rong Yan had on him was making him feel a sense of crisis in his heart.
If he allowed this influence to develop, it was likely to cause consequences that were beyond his estimation.
It was time to break it off with her completely, but he was not willing to give her to Su Yu.
The explanation Liancheng Yazhi gave himself was that this woman was his and giving her to another man meant that he was making himself a cuckold. This was not what he wanted to do.
He would maintain this relationship for the time being and just ignore her. After he had settled the contract with Su Yu, he would kick Rong Yan away.