Maybe some of you might be guilty of this so why do you do it? Thai females only eat Som Tam / insects/ Krappow moo lard khao khai dao so why bother trying to get them to eat anything of any cultural meaning like pizza or pepper steak?
I guarantee that a Thai female will nearly always opt for the seafood spaghetti should there be no Thai food available, or if there is, one of the dishes will be a salad of some kind, and it'll be spicy, and surprise surprise she'll spend the meal time saying "pet mak mak si" and laugh and then repeat herself, this time opening her mouth and moving her hand in a fan like motion to illustrate to you her point.
In McDonalds she may try the ice cream then pass a comment about some kind of diet she is / was on.
Ditto KFC though she may try one of your soggy tepid fries and screw up her face.
At Sizzlers she'll order the fish and watching her struggle with the super-size knife and fork is worth watching. She'll never finish the portion and will then get a square of jelly from the salad bar and pick at it.
I have never taken a Thai girl to an Indian restaurant. The two don't mix. Simple as that.