Does the story ends with thruple cause i saw the threesome tag

I haven’t read it but I read the authors note and that plus other comments say the answer is no. the second top has his own love interest.

Can you name this comic i can't remember the name and it's not showing on which one i commented this(￣∇￣")

Imperfectly Us
I just read it and there’s no thruple or even the idea of one. the threesomes occur with several different partners in a NTR context

Does the situation between them remains the same till the end ml enjoying seeing his partner having sex with someone else??

no, in season two it becomes a one on one situation instead since the mc never wanted to be with others