So it was a confession? 
I think so. When it comes romance she often gets too embarrassed expressing it directly.
In the Idolmaster 2 story (for those who haven't played it) you actually confess first though indirectly (you basically told her dead brother that "I love her" while Chihaya was sleeping on your shoulder. The irony is that she was actually listening. When she tried to bring it up the following day after her throat was fully healed, she got too embarrassed and couldn't finish her sentence.
She stopped at "You said you lo......" or something like that.
I really like the romance implications in Chihaya's story in the Idolm@ster games.
This is just my fanfiction mind speaking out. But, sometimes I would like to imagine an ideal producer who can pair up with Chihaya (she's the best woman in the world after all). A producer that's same age as Chihaya, athletic, kind, cool, and experienced a dark past similar to Chihaya and thus can sympathize with her. Obviously, I have more to say (I know my fanfics sound kind of lame), but I think you get the picture.