Begin by seasoning the ribs with salt and pepper. Arrange the seasoned ribs in the bottom of a crock pot.
In a small bowl, combine the soy sauce, rice vinegar, honey, sesame oil, gochujang (or sriracha), and watermelon puree. Whisk until smooth and pour over the ribs. Cook on low for 8 to 10 hours.
Meanwhile, begin to prepare the salad by whisking together the sesame oil, soy sauce, and rice vinegar in a small bowl. Add the cucumbers and watermelon. Toss to combine and season with salt as needed. Add the sesame seeds, basil and mint and refrigerate until ready to serve.
When the ribs are done cooking, use to forks to shred the meat. To assemble the lettuce wraps, take a leaf of bibb lettuce and fill it with the shredded pork. Top with the watermelon salad, and drizzle with additional gochujang or sriracha as desired.