Sudden ending (in Romance)

How do you guys feel about sudden ends in romance Manga/Anime? By sudden, I mean where it ends the instant the couple gets together, or after they kiss. I kinda hate it when they end like that, I prefer that they show something after that, usually a happily ever after kind of thing (like they get married, or have kids, or just something afterwards). Sometimes the sudden endings can work, but other time I feel you are just surprised and want more (while knowing you never will since its over). I get it can be used for dramatic effect, but I really like knowing what happens after they admit thier feelings and go out. Your thoughts? Any good or bad examples?

If you're wondering where this is coming from, i just finished reading Idol Pretender