She kept him 'in suspense' [=waiting anxiously] for two whole days before she agreed to marry him.
I don't know who won and 'the suspense is killing me'. [=I am very anxious to know who won]
The 'suspense' builds as the story progresses.
(..) Oh, it's a quick flight and I enjoy the change of scenery. Besides, if your tooth is what I think it is, - it'll be worth the trip. - Then I won't keep you in suspense. Oh, great! So what's so special about it? I checked online but couldn't find a shark that'd match it. (..)2002 Shark Attack 3: Megalodon