Heartmates - Two Wyrms that are "soulbonded" to one another. This is a VERY rare occurrence, and is noted on a Wyrm's info card by a half heart icon on the back of the card with a word inside. This word is a combination of the two Wyrm's soul-names, typically with the female's name first, followed by the male's. Once a Wyrm finds their Heartmate, any breedings with that mate will result in some special, random characteristics. It is worth noting that the Heartmate characteristic is NOT hereditary, nor is it a genetic trait that may be passed on. It is a very rare, totally random trait assigned to two Wyrms during their creation. These mates may be from the same clutch,mor they may be from separate clutches. There is NO way of knowing ahead of time, and NO way of predicting which Wyrms will carry the trait. (IE, don't request, beg, complain, or whine that your Wyrm doesn't have this trait. Don't ask when your Wyrm's Heartmate will show up. Dont suggest what type/breed/color you'd like the Heartmate to be. This is a random assignment of a trait by HopefulMonsterStudios, and can NOT be forced/changed/influenced)
You've just gotta find your Wyrm's heart mate! I know of only one other Wyrm who has not found their heart mate, their username is Mute on CS. I'd send em a PM to see what the word on their card is. I can try to talk to her too and if I get an answer sooner I'll let you know. If not, then you'll just have to wait till they come along. :3