We all know how a young Han Solo feels about the force. No need to beat a dead horse, there. Perhaps by the end of his life, he would have seen the pale of her skin, the type of clothes she was wearing and the distinctive weapon on person, that would have told him she was, or had been, a Sith. That would have led to him assuming all kinds of bad things about her, Ex or not.

As it is, her accent reminds him of people he'd have rather forgotten. Not enough to write off a person outright, but, enough to make him wary.

"Thanks, I think." It's not that she sounded expecially snarky, but, apart from giving him a name to refer to this place by ... she hasn't told him anything constructive.