Another thing is people's different objectives with a vacation. Some people(maybe LW) view it as getting away from their real life and have no desire to connect back to it in any way while on vacation.L3: Depends on when she was texting and how much. If she was texting at dinner or while you were doing an activity together, it's rude. If she was texting while you were reading novels on beach chairs, it's fine. The expectation should be polite attention during social parts of the trip, not 5 days of complete attention.
Some people view it as a vacation from devices and gadgets.
Others (like me) have no desire to disconnect. A vacation, to me, means a vacation from work. 100% leisure time. Sitting by the pool playing on the phone/tablet is just as relaxing as reading a magazine/book.