Heartwarming: The Kingkiller Chronicle aka: The Name Of The Wind
Abenthy's note to Kvothe left in Rhetoric And Logic.
People may hate her, but most of the scenes between Kvothe and Denna are beautiful and sweet.
Kvothe and Denna singing "The Lay Of Sir Savien."
Kvothe's occasional off the hip poetry scene (In the first book, through clever paragraph formatting, it's hard to tell that Kvothe's reply to Deoch's warning about Denna is in verse:
Deoch, my heart is made
Of stronger stuff than glass.
When she strikes sheíll find
it strong as iron-bound brass
Or gold and adamant
Donít think Iím unaware,
some startled deer to stand transfixed
By hunterís horns. Itís she who should take care,
for when she strikes
My heart will make a sound
so beautiful and bright
That it canít help but bring her back
to me in winged flight.
And in the second book he does this with a whole conversation!
His comforting of Nina (Girl from Trebon who saw the vase of the chandrian by giving her the charm (carefully making sure that even if she loses it, she won't freak out), and the scenes where he says he first saw the rewards of heroism.
How Auri comforts Kvothe after he breaks down about his parents' deaths during his Plum Bob period..
Auri: You are special to me. I want you to know I will always take care of you.
When it's revealed that Stapes had been replacing the flits in the Maer's gilded cage, not in some plot to poison him, but to make sure the Maer, his employer and best friend, didn't see any death while he was recovering. His crying when he's discovered doubles as a TearJerker.
Another with Stapes, when Kvothe is kicked out of the Maer's house, and he needs to return everyone's rings. Stapes takes the gold ring, but insists Kvothe keep the bone one.
Stapes: This is not part of any game.
Wil and Sim taking turns protecting Kvothe from Ambrose's malfeasance while he sleeps, for many many nights. They also spend a good deal of their days helping Kvothe with his research on the Amyr.
Narrator!Kvothe: They were the best sort of friends. The sort everyone hopes for but no one deserves, least of all me.
When Kvothe notices Fela start liking Simmon, the guy he constantly describes as a truly good/great person and who has been made clear to be horrible with women.
Narrator!Kvothe: It was worth blood and the fear of death to see her fall in love with him. Just a little. Just the first faint breathe of love, so light she probably didn't notice it herself.