You where peacefully washing your clothes on a deep lake. You suddenly see bubbles from the deep side of the lake and sees that someone is drowning

You quickly jump and pull them into the safe shore. You check their pulse and give them mouth to mouth response. They then loudly gasp and coughs as they look at you. It was a muscular white haired guy. He seemed rather mean.

“You-…..why did you saved me.” Rufus said in a cold tone.