Need a novel full of Romantic tension (not sexual)

Like the heading says…I don't know how do I say it in English…not even in my mother tongue…maybe "Angst"?! or maybe Longing for him/her!?

If you guys have read Tom Clancy's Without Remorse…there's a scene When Kelly comes to Sandra's house to check Doris and to inform Sandy he's going to Vietnam…felt there's a kind of tension between them..that's not in a bad way…I don't know if I am exaggerating it…but like "I can't live without you" kind!?…Need that kind of one's…