I ship Darvey too! I love their relationship even though they are mainly just friends and each other's closest confidante but they have a very long history together, I think no matter how many people Harvey and Donna date, they will always choose each other in the end. And while other women have come and gone in Harvey's life, Donna is the one woman who is constantly in his life, same goes for Donna. Even though Harvey & Donna's relationship might not necessarily be romantic and they might not end up together, but Donna is the one woman in his life whom he can't live without, so in many ways I see them as soulmates let's hope Darvey will be end game!