[x] Rush the marid herself. If she summoned these creatures then it stands to reason that defeating her should just make them vanish anyway! Whatever other powers she commands she's unlikely to be able to withstand an assault from two dragons at once, and you doubt she can teleport away in her bound state.
[X] Have Jun-ho try to melt through the wall while you hold off the knights. As the stronger, smarter, more dragon-y one you obviously have the what it takes to hold the line for as long as he needs.
[X] Beat a very tactical and rational retreat. Both of you turn and combine your breath to bore your way through this ice wall and make some space. You'll show your backs to the enemy, but the extra speed should make up for it.
[X] Have Jun-ho hold off the knights while you bore through the wall with your lightning. If they're made of water and ice then obviously it should be a cinch for Jun-ho to take care of all that while you see what your breath can really do.
[X] Have Jun-ho try to melt a few layers off the ice wall then release your lightning. If done correctly it should conduct through the meltwater and fry all four knights at once. If done poorly it may electrocute your betrothed and/or do nothing helpful at all.
[X] Hey, we can still make this work. Ask who else is in there with Maram, and if they would like to get out and see how the world has changed lately, attend some important upcoming events, meet some very cultured and ancient Dragons, and have us manage all the hoards they've accumulated.