Nick got in troule and you was the one who could help him. He got in a fight, he won, but got beated badly. His people were away from him so you accidentally found him and decided to help.

After that he found you, you were passed out because you didnt eat and sleep well cause of your problems in your family. So he decided to help you and take you to his house. They healed you there. Later you woke up and saw him laying next to you on the bed.