While I've tagged this a "rework", this is more of an "errata" or "quality of life" buff. Heartwarder suffers from being a little old and some other design snafus. I'm here to remedy that.

Heartwarder
"Heartwarders are aesthetes and hedonists who actively seek out pleasure and beauty in all things and who nurture the creation of beautiful objects."

Requirements
Alignment: Chaotic Good
Feats: Exotic Weapon Proficiency (Whip), Spell Focus (Enchantment)
Skills: Bluff 6 ranks , Diplomacy 8 ranks
Spells: Ability to cast 3rd level spells.
Special: Must worship the deity Sune.

Hit Die
d4

Class Skills
Class Skills
The Heartwarder's class skills (and the key ability for each skill) are Bluff (Cha), Concentration (Con), Craft (Int), Diplomacy (Cha), Disguise (Cha), Gather Information (Cha), Heal (Wis), Knowledge (Religion) (Int), Perform (Cha), Profession (Wis), Sense Motive (Wis), and Spellcraft (Int).

Skill Points at Each Additional Level
2 + Int modifier.

Level Base Attack Bonus Fort Save Ref Save Will Save Class Features Spellcasting
1st +0 +2 +0 +2 Charisma Increase +1 level of existing spellcasting class
2nd +1 +3 +0 +3 Heart of Passion +1 level of existing spellcasting class
3rd +2 +3 +1 +3 Charisma Increase +1 level of existing spellcasting class
4th +3 +4 +1 +4 Lips of Rapture +1 level of existing spellcasting class
5th +3 +4 +1 +4 Charisma Increase +1 level of existing spellcasting class
6th +4 +5 +2 +5 Voice of a Siren +1 level of existing spellcasting class
7th +5 +5 +2 +5 Charisma Increase +1 level of existing spellcasting class
8th +6 +6 +2 +6 Tears of Evergold +1 level of existing spellcasting class
9th +6 +6 +3 +6 Charisma Increase +1 level of existing spellcasting class
10th +7 +7 +3 +7 Fey Metamorphosis +1 level of existing spellcasting class

Class Features:
All the following are Class Features of the Heartwarder prestige class.

Weapon and Armor Proficiency:
A heartwarder gains no weapon or armor proficiencies.

Spells per Day/Spells Known:
At each heartwarder level, the character gains new spells per day (and spells known, if applicable) as if she had also gained a level in a spellcasting class to which she belonged before adding the prestige class level. She does not, however, gain any other benefit a character of that class would have gained (improved chance of turning or destroying undead, metamagic or item creation feats, and so on). If the character had more than one spellcasting class before becoming a heartwarder, the player must decide to which class to add each heartwarder level for the purpose of determining spells per day and spells known.

Charisma Increase (Ex):
As the heartwarder gains levels in this prestige class, she becomes increasingly more persuasive and attractive. At level 1 she gains a +1 sacred bonus to her Charisma score, and every other heartwarder level after that this bonus increases by +1 to a maximum of +5 sacred bonus at level 9.

Heart of Passion (Ex):
At 2nd level, a heartwarder evinces such passionate belief in whatever she does or says that she can sway the thoughts of the most rigid critic. This ability translates into a +2 bonus on all Charisma-based skill checks.

Lips of Rapture (Su):
At 4th level, a heartwarder's kiss confers a state of bliss upon its recipient, conferring a +2 morale bonus on attacks, weapon damage, checks, and saves. Moreover, it temporarily suspends the effects of exhaustion, fatigue, and nausea. An enraptured recipient receives a +2 saving throw bonus against enchantment spells and effects. This ability lasts 5 rounds, and can be used a number of times per day equal to her Charisma bonus. The one downside to a heartwarder's kiss is that it also has the effect of a daze spell upon the recipient (the normal saving throw applies) as if cast by a sorcerer of heartwarder's caster level.

Voice of a Siren (Su):
At 6th level, a heartwarder's voice is so enticing that she weakens the ability of opponents to resist her spells. She gains the Greater Spell Focus (Enchantment) and Spell Penetration feats, but they only apply to spells with a verbal component (and do not apply when using the Silent Spell feat).

Tears of Evergold (Su):
At 8th level, as a fullround action, a heartwarder can cry tears drawn from Evergold, a sacred pool that enhances beauty that Sune shares with the elven goddess Hanali Celanil. If these tears are collected, they are equivalent to the effects of a potion of love and serve the Sunite faith as holy water. A heartwarder can use this ability a number of times equal to her charisma modifier per week.

Fey Metamorphosis (Ex):
At 10th level, a heartwarder is so attuned to the forces of natural beauty that she transcends mortal definitions of beauty. Her type changes to "fey," which means, among other things, that she is no longer affected by spells that specifically target humanoids, such as charm person .