Well shit bro. I bet Suki did that for a better reason than you see. Maybe she was hurt but you don't want to see how she feels. But who knows? seems like all the bad people end up in the same spot~
Just calmly tell then that you know what's going on. If you don't like them you don't have to do anything. Just make them jealous that they're not with you anymore~
I'm sorry moonlight. I just wanted to to know about them before you get hurt too bad. Spark even agreed to "secretly" be together with spark. If you look through spark's animations you might see where they were talking about it