In his previous life, he was the one who used to talk sweetly to his girlfriend a lot, but the purpose behind the sweet words he said to his girlfriend was to get what he wanted from her.
Just like what happened when he ended up dying after trying to score in his girlfriend's goal post a month ago. Back then, he just wanted to have sex, and that was why he kept saying sweet words to his girlfriend.
Now that he had transmigrated to this world, he wasn't the one to say sweet words often, but it was he who ended up taking his girlfriend's place to feel embarrassed and blush so hard after he heard someone say something sweet to him.
Yes, when Zhu Ge suddenly said something sweet to him, he couldn't help but blush, and that was why he immediately thought that karma did exist.
