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Tear Jerker: In Flight
Matsu gets punished by being scolded and losing her place from sitting and sleeping with Shirou for bringing up more of his past that he wanted. Disproportionate Retribution much?
Absolutely not, it was a really stupid Batman Gambit on her part. But it is still heart breaking for her and for us to see the gentle Shirou erasing her name from the whiteboard.
Maybe to us its not a big deal, but to Sekirei who believe in forever and after more adamently than any other being out there, something like this is pretty harsh. Again, for a Sekirei.