Chris gave a warning to Selene, whether she follows it or not depends on her, he has nothing to do with her anymore for now. She was just a girl whom he met by chance and he had sex with her because she wanted to seduce him and he wanted to release his frustrations.
He gave her a few hundred gold coins and with that, she could have a good life. She would no longer need to depend on others for that from now on. Whether she could or not depends on her. He has a lot on his plate to take care of.
If he meets her again, he would help if he could but not so much so that he would go out looking for her and help her. He already gave her a warning about what's about to come. Now it depends on what she is capable of.
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Back at the Auction...
Selene was in a daze when she saw the small bag filled with gold coins in her hands. Chris gave her that before he left the auction house.