Okay, I have finished episode 5 thinking it was the end but apparently 1 more episode has been added. But there is nothing an added episode can do to save this mess.
This is by far the worse script for a BL (except 2 Moons The Ambassador and let's face that travesty should have never been made)

The story is so contrived. Ana is already crushing on Fuse before meeting him officially and then they do meet as Fuse arrives at Ana's father's dental practice for a teeth cleaning with Fuse asking if hes good looking and why he's single if he's so good looking. Ana says Fuse can hit on him and BOOM & BIG BOOM (Pun Intended) suddenly they are in love. Both suddenly feel the right to be jealous for the most mundane of reasons. They barely know one another yet all this angst ensues. It's almost farcical. The tears and jealousy is laughable.

And they have zero chemistry or the ability to build some. Like for instance 21 Days Theory laid some ground work and made it believable. X had a crush on Q and realized his time was running out to make a move so he insinuated his way into Q's life. He made Q fall for him even though Q had no idea who he was. It wasn't some instant love.

In addition I can be very petty and I admit that so when the new version of Love Mechanics came out it was not made available to an international audience but the first two episodes appeared on YouTube and that was when I saw the new Gun and Bar and immediately I said NO. They were not Folk or Win (the original Gun and Bar) they were in my opinion a poor substitute. Good Looking Yes. Decent Actors Eh, sure but for me they were not authentic to what Gun and Bar was in En of Love (TOSSARA, LOVE MECHANICS & THIS IS LOVE STORY) it was like how MAME took Love By Chance 2: A Chance To Love and changed the whole story which made no sense.
Ana and Fuse seemed like a joke the way they suddenly became boyfriends. And all that followed. Plus were Gun & Bar even needed if they were so would Vee and Mark. They were not there and definitely weren't recast.
I personally would have liked Tee and Bever to be used more as support than Gun and Bar. Tee played Ana's friend but wasnt a cohesive part of the story. All support seem to come from Fuse's friends like Kamphan, Gun and Bar.
Even though it ended unhappily even The Best Story made more sense and had a great balance.
Future the Series will definitely not go down as a favorite. And that's a pity because I adore Rookie Thailand.
Update: Episode 6 Aired and nothing changed in fact it got just a little bit worse. So good news is it's over and I never have to see it again. This one is dead to me.