Michael comes back from the dead - Jane the Virgin
This entire storyline is cruel to both Michael and Rafael fans. There was really no point in bringing Michael back if she was still going to end up with Rafael. If she's not, why kill Michael off in the first place and let her fall in love with Raf?
Prairie and Homer are seperated by glass - The OA
Prairie and Homer are the ultimate ship tease. They were so close, yet could never actually touch each other. When they're finally able to hold each other for the first time they are violently pulled apart.
Amy and Jonah kiss during the tornado - Superstore
After two seasons of build-up, Amy and Jonah finally kiss in the Season 2 finale. However, they only kiss because a tornado has hit the store and they both think they're about to die. The moment the storm ends, a heartbroken Jonah is forced to watch Amy run back into her husband's arms. Ouch.
Octavia calls out Bellamy's feelings for Clarke - The 100
Fans have been shipping Bellamy and Clarke ever since the pilot. In fact, there are so many teases it would require an entire slideshow to list them all. On Season 5 Bellamy's sister finally called him out by accusing him of being in love with Clarke.
But as usual, nothing ever came out of it and it was never addressed again. So...what was the point other than to confuse fans? The inconsistent writing really jumped out.
Eretria almost kisses Amberle - The Shannara Chronicles
These two were teased so mercilessly it was hard to watch. The creators themselves even teased Eretria's attraction towards Amberle, but nothing ever came of it as Amberle turned into a tree and Eretria got a girlfriend.
The Doctor and Rose (kind of) end up together - Doctor Who
Rose may have ended up with The Doctor, but he didn't get to end up with her. She was able to live out her life with a clone of him, while The Doctor had to let Rose go. This wasn't satisfying in the slightest.