Can I get any worse

Why do I feel like me and the guy I'm talking to are enemies more  than together .... We are at the store shopping for clothes and he buys two shirts that are not name brand for 25 dollars and I said that's not a great deal .... So he asks the lady behind the counter working is that a great deal and said she said yeah so I should get it ... when he know I don't like people in our business ... Is he wrong for asking her this ??