Actually in the author's pixiv, it's implied that Tougou actually didn't really hate what's happening.
The setting is, Tougou's friend is sharing what she's feeling, and it reminded Tougou of Sayama.
Loose translation:
"It's also my fault that I didn't properly refused her when she came to me." "I guess it made me happy that such a cute girl has taken a liking to me."
"Sometimes she got me wrapped around her finger, but it's not like I hate it." "Sometimes it even made my heart race." "I guess I'm quite touched by her affection"
Full chapter: https://www.pixiv.net/en/artworks/80674267