Maybe all of Logan's do-gooding was an attempt to make up for the crimes of his past. His own mind had blocked out much of what he had done and been through, but his nightmares brought them back to life time and again. He sought atonement, and satiating vampires to prevent them from attacking the populace was a small price to pay.
He topped off the glass, and slid it back toward Therese. "I'm guessin' cold storage," Logan said with regards to the blood, but shrugged. He only knew what he saw in the lab back at the mansion. Jean often had packets of blood in a specific refrigerator in the lab, always kept at a constant temperature. He didn't say more about it. However the woman decided to keep the blood was no concern of his. He was simply the food source.
Logan wiped the blood from his wrist, and cleared his throat. "Well, you make sure you take care of that wound," he said as moved from behind the bar. "If you need anymore help... well, I'll be around if you do." He tipped his head to Therese in the same he would if he were wearing a hat, and made his way to the exit. "See you next time... Blondie." He couldn't resist calling her that one more time before he left.