She was the first woman he slept with in Atia. More than that he considers her a good friend and someone he could probably even fall for if he's not careful.
He can't help but be competitive with her. She's pretty damn cocky and the urge to take her down a peg is hard to fight. He really knows he has to watch his step around her when they are gaming, since if he slips up he knows she'll put him into a dress and he is just not having that. Otherwise she's a fun person to be around and makes him laugh.
Ash definitely reminds Sam of an over the top version of his brother, Dean. Of course he will never really admit that out loud. Ash kind fills that void for Sam, even if the guy gets on his nerves a lot. He still respects him overall and considers him a friend. Otherwise he wouldn't be roommates with the guy.
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