Yes you can. Use corn tortillas instead. They are healthier and tastier. Typically quesadillas are made from corn tortillas in Mexico and By Mexicans at home. The use of flour tortillas for quesadillas is an American thing.
Get a boyfriend that will.
To find a boyfreind that buy you tacos and burritos try one of these places:
In Hanoi go to Salt 'n Lime.
In Saigon go to La Fiesta or Gringos.
Ask for your tacos traditional style and double up on the tortillas.
Take her to someplace really classy and nice, expensive, something she can brag about to her friends. Order a drink, then, phone in your delivery order to Saigon Tacos. I suggest the duck tacos special with fresh tortillas and beans.