@HerHer I saw it in theaters when it came out (I was fortunately in Japan) and I forgot if she said that D:
I wouldn’t be surprised if she did though given their interactions together
I feel like Dai/Yuuka only makes sense under the fan theory that Yuuka is what you get when a fairy — well, ascends (or exalts or ennobles, depending on your opinion of the process): that fairies, as embodiments of nature energy, can become something more if they dedicate themselves to something and gain sufficient power. In other words, Yuuka is the destination that Cirno is headed towards.
Homura is set to have a tall, slender figure, she is a stunning 159cm as a 14 year old, which is very tall for her age(specially for a Japanese person), so at the end of the day, a flatter chest suits her most, if she can age up enough, she has all the qualities to draw the most out of it.
The only question is if she ages at all as the devil...
I also ship ChikaRiko, HanaRuby/RubyMaru/HanamaRuby and KanaMari, so Dia is kinda left out. Maybe I could ship her with Seira, but then there's also Ria.