1. They understand each other 2. They don't judge one another 3. They accept each other for who they are and do not try to change anything (Like Courtney) 4. They have common interests 5. They enjoy the same things 6. They are really cool people 7. They started off as friends first 8. They have both been in anterior bad relationships
because duncan and gwen are altumate soul mates the have almost every thing in commmon, they both obviously amor each other, they both care DEEPLY for each other's safty, and unlike courtney, gwen doesn't try to change anything about him and that goes the same 4 duncan trying to change gwen that doesn't happen. She is laid back not highmaintnes and uptight, and he likes that and they cant get enouph of each other and the lista goes on.....