I think you would like:
Kimi Ni Todoke - the cotton candy of anime romance
You might also try Cross Game The first episode will probably make you cry, and there will be sad moments through out the season, but overall I would not call it a sad melodrama (like Clannad), much more of a focus on the healing aspect.
An older one you should look at would be Maison Ikkoku, the great grand-daddy of most anime romantic comedy. Still #1 in my book.