I’m re-reading the Silmarillion now, and it just struck me that Melian’s taking it pretty easy. Doesn’t she have a job or a boss like the other Maia? She’s just busy dancing in Beleriand, Thingol snares her, then she settles down and has a kid. Seems to me that almost all the other Ainur are pretty busy creating the world and fighting Morgoth and such.
Granted, she’s helping the forces of good by making Thingol a strong foe of Morgoth, but she never has to report back to Yavanna or anything. Cushy job!