I have no idea where this series is going anymore

I don't usually write reviews, but I am so confused about this episode. There was no real confession scene? They just kiss and immediately sleep together and are a lovey dovey couple. Ton's change in demeanour especially is so dramatic and happens so quickly he almost becomes a different person. I'll keep an open mind since the series isn't over yet but it feels like I'm watching two different shows scene to scene at this point. The actors are the only reason my rating is even this high because I think that despite all the weird inconsistencies they are doing a great job and have great chemistry.