North's Links
North, being very hyper-energetic, is always trying to get South out of his shell and come and do something with her. Because of this, she usually exhausts the poor guy. Knowing this, North will sometimes respect her mate's space and let him cool down. After all, she does love him, and doesn't want to lose him.
South loves North a lot, but worries for her all the time. Being a lot more cautious and a worrier, he can't really keep up with North's wild attitude, and easily gets worn out because of her. However, he tries to keep up with her no matter what, even if that means passing out from a loss of breath. After all, he does love her.