Oh, you know Lala-chan?

[Assuming it's the same Lala and not someone else, but it's not exactly a common name in Japan. Either way... hm. That's interesting.]

I was able to figure it out for myself relatively easily, merely by the revulsion I had toward female classmates showing 'interest' in me. I had no qualms spending time with my female friends, but anything remotely indicative of attraction from girls was... off putting.