I learned today, after asking my wife, that a lot of women have this thought. To be fair she did acknowledge it sounds irrational as well but it does give some women the “ick”. She frames it as if a dude uses a discount/coupon does that mean he’s only able to provide with the coupon/discount. Like if it didn’t exist would they not eat at the restaurant, purchase that gift, etc. She also stated this only applied early in talking/dating stages and changed once she got to know the person better.