Something sweet and full of fluff

Hmmm, I don't know about sickeningly sweet, but Stand Up! is super funny and has great eye candy. Switch Girl will also make you laugh out loud. Hope you get to feeling better.

My girlfriend is a gumiho will cause a toothache it's so sweet Panda and hedgehog To the beautiful you but I see it's on your dropped list but it's super cute and sweet Greatest love Romantic princess I love lee tae ri Flower boy next door

I will add Otomen and One Pound Gospel. Also maybe Yukan Club. The drama in that is more funny than serious. I also second Protect the Boss. It was the first time I wasn't annoyed by second lead girl. I ended up really liking her. She's sort of silly and not that evil, though she does try. Also there's a really good kiss scene in it. edited to add: Panda and Hedgehog was really good with some awesome bromance and a character I loved, but it definitely had it's share of drama. It's not a heavy drama though, and oh my goodness were the 2 main guys adorable.

Yes I agree with Switch Girl! :D Also try, Ma Boy, Playful Kiss, Mary Stayed Out All Night and Me too, Flower.

Couple or Trouble, The Queen of Office (same leading man in both), Flower Boy Ramyun Shop, Hotaru no Hikari, A Gentleman's Dignity. Also a lot of Family dramas have cute and heartwarming side romances - Unexpected You, Ojakgyo Brothers, My Too Perfect Sons.