This adorable dog and grumpy cat appear to have opposite personalities, but their owner says they are the best of friends—despite the cat’s face saying otherwise. Rinsa Li, 29, from Christchurch, New Zealand, loves taking pictures of her two pets Casper, a 6-year-old Samoyed pup, and Romeo, a 2-year-old cat. The furry pair love spending time together, from cuddling up on the sofa to going on long walks around the country together. But despite the adorable relationship, Romeo can’t get rid of his hilariously grumpy expression that leaves strangers in hysterics when they see him. Photographer Rinsa often takes her pets out together. They have been on road trips, have visited popular tourist attractions, and go out every day for a two-hour long walk. The pair has gained a massive 65,000-plus followers on their joint Instagram account, which highlights their fun, adventurous moments together. “I always wanted to get a cat …