You already reading it until chap 49 and still calling Taeju as blonde hair guy or ml, you can't even memorize a name and saying you can't get our logic you better reread it maybe you forgot some chapters too.
Let me say this, for me Yes I like Taeju and Euihyun to be together why? cause there the main lead and I'm waiting for Taeju's character development, if this not happened and it's sad ending then I'll just accept it without protest cause that's how the author made it, I don't have the right to change it it's her story her rule
so don't talk sh** about the story cause it's not complete yet so wait until the author said "the end" and then judge if were right to bias taeju