Looking for something light that isnt too melo and has happy ending.

Looking for an office romance where the one is a boss and the other is an intern I would prefer for the FL to be the boss but either way.

Something with a twist like the ML secretly being a rich guy and pretending to be an intern would be perfect.

I am watching Mother of Mine so something basically like that also I have watched Encounter thats good too.

Never Gone has female boss male intern.   they are the 2nd leads in this, although they have as much screen time as 1st leads. 

It will be difficult to find a similar drama. I went through my list and only one title that i could find was Divorce Lawyer in Love. It's a light drama to watch.  At the beginning FL is the boss and ML is her office manager, later the tables turn and he is trying to get a revenge on her for being treated worse in the past. 

I think Ms. temper ... but its not romantic

Across the ocean to see you

Yuttakarn Prab Nang Marn

My true friend

High society

Mother of mine

try Touch your Heart!! 

Sapuri

Cain and Abel (It's the other way around)

Suits

Sekai Ichi Muzukashii Koi