Oh god, he's... Delta has too much parenting instincts. He moves and pulls Wash into his arms. His grip stays loose, if this man really has been through war then he might have reactions to contact that Delta can't really handle. But he can't just stand here and let this guy hurt. It's not in his nature.

"I'm sorry," he whispers, even if the words are a bit slide-y from the drinks. "I didn't mean to upset you."