When they come to find out Iori wouldn't actually die. it was a moment of heartwarming after all the events that happened in Episode 5.
When Inaba relieves all her bottled up feelings as she finds out that Taichi was safe and didn't actually fall off the cliff in Episode 10. After all that she went through during this arc, she really turns on the water work.
Inaba's confession to Taichi afterwards.
Taichi and Iori's dream conversation in Episode 17.
And then the confession scene with Inaba right after Taichi wakes up.