The best example of how something that has a great start ends up being a disappointment.

The first part of the drama (episodes 1-7) is one of the best examples of how a BL must be done. Tine is an extrovert, funny and naive guy that charms everyone with his charisma. Sarawat is mysterious and silent guy who seems to have interest of Tine. Characters plan to fake-dating to make Tine's stalker stay away from him. The chemistry between them is obvious here, thay have tender and funny moments. If the drama had ended here they would have a sound 10 and it would be considered the best BL ever made (along with Sotus)

Then the second part (episodes 8-13) happens.
It's a new stage of the drama.,Tine and Sarawat decide to make the relationship official so the pace of the series should be different, and it is... in a very disappointing way.
Tine who was always smiling and telling jokes turnssuddenly into a insecure man and a crying mess, he was happier when he was single. They turned him in a strereotyped damless in distress (or worse, an uke) who needs to be saved. And Sarawat who was completely sure about his love for Tine doesn't ease his partner insecurities. He lets misunderstandings happen around him without moving a finger until it's too late.

Even the actors (Win and Bright) seem to have lost their spark and their awesome chemistry. I can't believe they kiss more when they were not dating than when they were. And no, i'm not saying I need a make out session but at least i would like to see love between them.
I thought I was seeing two flatmates instead of two lovers.

On the whole I would say that if you're gonna watch this, do it... until episode 7, then drop it and pretend that everything that comes next doesn't exist at all. I bet your imagination can do much better than the lazy writing of the second part.