Please recommend me some romantic comedy movies. Something light, there can be some drama but not too dramatic and nothing sad, something really romantic with a good happy ending. More romance than comedy, meaning I don’t necessary need to laugh much.
Bad Sister
Love Forecast
A Perfect Match
These two are old but I always like re watching- Always and Millionaires First Love
I liked my tutor friend 1 and 2
Penny Pincher - have Song Joon Ki is in it
Our Heaven - Hongki from FT Island

Finding Mr. Destiny
Catch Me
Love on Air

"Something light, there can be some drama but not too dramatic and nothing sad,"
I haven't seen it so I'm not sure about this but isn't Millionaire's First Love a tragedy?  

I don't think Always and A Millionaire's First Love can be described as "light" and "not sad". To answer Phikyi, yes, it is. I checked Loretti's list and she's already watched those two, though. :)

Anyway, I recommend the following:
  • Our Times (Tw)
  • I Fine, Thank You, Love You (Thai)
  • Heroine Shikkaku (Jp)
  • Teacher's Diary (Thai) - If your definition of "romance" means having to be in constant interaction with each other, I guess this one fails. But it's a good watch in general. 

Seducing mr Perfect with daniel henney is one of my all time favorite movies i've watched at least 5 times. not sure if u've watched it