Anime confessions are generally teeming with tension. No matter what's revealed, it's been a secret up until that moment, often for good reason. These scenes are often emotional and even further the plots of some tearjerker anime series. Sometimes, however, they're just plain embarrassing.
This is especially true when it comes to declarations of love. A character may be awkwardly trying to explain what they want, like Edward Elric of Fullmetal Alchemist: Brotherhood rambling about alchemy before successfully proposing to Winry Rockbell, and she gets too distracted by his odd percentages to answer. Or maybe the character is called an idiot for revealing their feelings and is utterly devastated, which happens to Mitsuo Yanagisawa in Golden Time.
Few things are more awkward than a love confession that's a total facade. Sakura Haruno has never reciprocated Naruto's feelings for her; instead, she's been nursing a huge crush on Sasuke. When Sasuke defects and becomes an enemy of their village, Sakura believes Naruto is so insistent on finding him is because he promised her he'd bring Sasuke back.
Whether she wants to stop Naruto from putting himself in danger, or protect Sasuke from the possible legal consequences of returning to Konoha, she tries to stop Naruto from pursuing him. She "confesses" that she's fallen in love with Naruto, not Sasuke.
Naruto sees right through her lie. Unfortunately, he also misinterprets her intentions, believing she's lying to herself, not to him. He tells her he's pursuing Sasuke for his own reasons, and she leaves in a huff as onlookers stare in open-mouthed shock.
It's hard not to feel bad for Chiyo Sakura. She just wants to ask out the boy she likes, but Nozaki is so dense, he doesn't understand what she's asking for at all. Chiyo's vagueness doesn't help much. She calls herself his "fan," and because he's a manga artist, he thinks she's a fan of his work and gives her an autograph.
When she says she wants to "be with him forever," he concludes she's insisting on helping out with his artwork. Thus begins Chiyo's life as a manga artist's assistant, a decidedly different role than the more romantic one she had in mind.
You have to feel some sympathy for Rem. She loves Subaru Natsuki so much she's willing to sacrifice her life for him, but when she finally confesses her feelings, he immediately shoots her down. Subaru respects and cares for Rem, but he's already in love with somebody else, a half-elf named Emilia.
Rem accepts her rejection gracefully enough, but afterward she decides she's willing to do anything Subaru wants, as long as she can be in his life. Does he want a mistress? A servant? She'll do anything, and that desperation is only makes her more pitiable.
Edward Elric's confession to Winry Rockbell is as clumsy as it is adorable. Like a giant nerd, Edward brings alchemy into his declaration of love for his childhood friend. To make his feelings known, Edward says, "Equivalent exchange! I'll give half of my life to you if you give half of yours to me!"
Sputtering, blushing, and haggling over the exact percentages of their lives to give to each other ensues, but the two do end up getting married by the end of the series. A little awkwardness is part of their charm, and it means they're being their authentic selves.