Found a bit of a context error for the Shark scene, which I just noticed and now is bothering me, I understand why since the scenario isn't implemented. It is mostly a problem if you interact with him after you 'wipe him out with a tidal wave' in the bedroom. In any case you can still flirt with him if he is heavy weight but light enough and ask to do the same scene again, which brings into question if he is addicted by the idea of being wasted like that if he complains about having to work it off... Hmm... Perhaps I smell a possible scene to be made?
On another note, it would be interesting if developing relationships with characters can unlock new things to do or places to explore. Since I am feeling like there isn't much variety to do in the town in terms of small events. Granted, you are still fleshing out the world; perhaps in one of the later updates, which could be a combat update, we could have double battles against certain characters? Of course, it would make sense to release it with that combat partner idea you mentioned a while back to balance it out for fights.
Anyways, hope you're doing well and take care! Don't burn out!