no ummm he at some point tells you that he has something to tell you after you come back from the mission where kuno and the brawler go a separate way and find the big tree. But since I came back with no armour and no healing items (I also didn't save ) so I didn't want to hear it and he said to come to talk to him during the evening I think? Because he's buys during the day so I can't talk to him to progress the story
I'm afraid you might have missed the opportunity then. He should offer you whenever it's sunset (the sky is orange). There's two opportunities, once after the slug den quest, and once after the mine quest.
If you have any old saves to go back and witness these scenes, feel free to. But ultimately the only thing you missed out on are some relationship points and character backstory / exposition. No lewd scenes or anything.
