So we're near the end. Weird that the author seems to try to show something going on between Bambi and Togawa. Glad that Bambi seems to have finally realized his feelings for Hina and it'll work out in the last chapter!
Canonically, if I had to guess, Bambi x Togawa was never not a possibility for either of them. She was clearly interested in him right off, and he found her interest surprising and intriguing. But he had to get his head straight about Hina one way or the other before doing anything else. And she's seen that all along and is probably prepared for the worst. (As much as one
can be prepared in a sitch like this.)