You need at least 40 likes with Bernard to share the bed on the hunting trip and you need to sleep with him in human form
ohhh im only at 14 i dont know how to raise his likes ty so much for the tip :>
You can help him with the shop you can do it everyday, go on the hunting trip together and praise his cooking, do some tasks, just be overall nice and helpful, he stacks likes pretty easy compared to some people