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if you want romance, take the smaller hwy's across the country, stay off the interstate, Also this time of year carry Lot's of cold water, coolant, belts, extra car battery, hoses, non-perishables, sheets to use as shades, lawn chairs to stay off the ground, working cell phone, paper map cause computers break, CB radio to get ask for help from truckers. romantic means smaller hwy's and less people to get help from so be prepared and you will live to tell the tale, I can tell you which hwy's but it's a long ride. but take the hwy's below the I-10 then cut up to the main one in Az by Tucson and back to the smaller hwy 90 in van horn TX then take the hwy 277 back to the I-10 east to the 290 east that will put you right in Austin.