Using Gift Certificates and Coupons Frowned On For Dates, Smiled On After Marriage?

I get the impression that it is sort of taboo to use "alternatives" for money, like gift certificates/cards and coupons during the dating phase of the relationship (as if someone needed to prove they can "afford" to take out another), but after marriage there is a switch to it being considered frugal to do so (as if since it is now "our" money being saved, it is okay to do that now).

Opinions?

Does the fact that the gift certificates/cards were purchased by myself at a particular time when I was able to earn a lot of frequent flyer miles doing so? Serious example was that purchasing $1200 worth of such gift certificates/cards from five different restaurants during a special promotion period earned me enough miles to fly a special flight award that was a trip to Japan, Hong Kong, Australia and New Zealand that was 33 days long and 15 flights in international business class for 150,000 miles earned through that promotion plus less than $200 in taxes and fees. Such manipulation of promotions earned me more than Two Million Frequent Flier Miles in just over three and a quarter years, also earning lifetime mid-tier elite flying status.

Does that make a difference?

Are coupons, like from the Entertainment books, which generally are only useful when purchasing two meals, a turn off?

Just trying to understand the perceptions and interpretations of the opposite sex, but welcome opinions and experiences from everyone.

Thanks.