There are several couples in Raven Wolf, but none that have 'happened' or been introduced yet at this point in the comic (the novel version is much further along)
For No Future I'll go with Era and Abaddon for starters, since their relationship is the most commonly brought up. Era is a god of time, while Abaddon is a god of death, while all their children are reapers. Though they don't get lovey dovey in the comic the fact that they're married and have children comes up often. Currently they are both 'working' so public affection is not shown for the sake of professionalism, though Era does often come off as a little bit territorial of his wife in concerns to Osiris, a god who ranks much higher than him and currently spends a lot more time around Abaddon than Era is comfortable with.
For my second couple I'll go with Nickolas and Daisuke. Though not much has been reviled yet this far into the story aside from them being 'mean bullies that no one likes', it's been mentioned that they are a couple, Daisuke will often deny the relationship despite it being common knowledge among the students. While Nickolas doesn't have any issues with admitting or even anyone else knowing (not counting his parents)