spoilers:end of spoilers
It seemed like they were setting up AdamxTeela in their first interactions in season 1, but that kind of fell by the wayside, especially in this season. I think the closest they came to referencing it is Teela being happy that Adam wanted to see her (or really, anyone) when they communicated early this season.
I do find it kind of funny that Duncan and Skeletor have had more on-screen focus on their relationship than Adam and Duncan.