The TL interpreted Cait's & Sieber's extra wrong. The first "Iya" used in this context was refusal, not hate. It should be:
I want to get married too but I just get told no...
Of course you'd get no for an answer
Crap! I said it out loud!
But I didn't think you hated the idea that much~
Only because you made it sound like a joke... If you don't propose to me properly, I'm going to say no.