Realistically, Ian would have a few missing teeth if he was a real professional hockey player. Anyways, he made Eunsan gay, if not, then a bisexual man. He's basically adjacent to the Ryan Renolds of hockey.
Two very hot and muscular men who may or may not have feelings towards each other. Yep, they're just friends who happen to be rooming together.
Taejun planning to baby trap Yumin due to him lacking communication skills, his deep love (possessiveness) of his bae, and his impending concern that Yumin will be scared and run off? This sounds like it's not going to end well.
Yumin ain't topping the natural born top, Taejun. Also, Yumin would be the one getting pregnant, not the other way around.