Just recently finished watching the most recent episode. The romance is going a bit slow. It's halfway thru, and there's barely any scenes with Don and Da together. Plus, Chuck and Tawan are constantly bickering. Hopefully, there will be more progress in the upcoming episodes.
It's funny how she keeps thinking she's gonna sleep with him in order to repay him even though he hasn't touched her once in that way. I think that when Don comes back and finds them together, he's gonna break off his relationship with them both. Chuck would probably feel really frustrated for being misunderstood and for losing his best friend that he would actually 'r' her. haha, wishful thinking, I know.
But most likely, Chuck would never do that, since he's a gentleman. He would probably just continue taking care of her and later realizes that he's into her, but he won't make a move on her since she's the girl his best friend loves. And seeing how Chuck is like, he won't pursue Tawan unless Don gives him the 'okay' to. Hell, it might even have to be Don to make him realize his feelings for Tawan.
I can't wait to see what unfolds next!