Minori is vaguely aware of the crush Ryuuji has on her. Vaguely aware, meaning that the blushes and stammers registered in her mind, and then were dismissed. Actually, she knows, Ryuuji is a great guy. Great boyfriend material. Even his slightly warped aspects – like, say, the unholy joy he receives while cleaning the bathroom -- are super useful. Also, she would like to go UFO-hunting with him, and appreciated that he asked.
However, more important than her desire to go UFO-hunting (and this does take a special kind of man, she knows) is the fact that Taiga is happier with him than she has been in a long time. Whether Taiga has a crush on Kitamura is irrelevant. Whether Minori herself could discover the greatest UFO of all (no, she doesn't know exactly where she is going with this metaphor either, but it has to do with love) with Ryuuji, is also irrelevant. Bros before hos, after all – no, sistahs before mistahs? That simply doesn't roll off the tongue as well, though.
Actually, Minori doesn't consciously think about this stuff a great deal. With the possible exception of the dilemma of appropriating the macho idiom into her own speech (another issue she considers is, hypothetically, if one was lesbian, how would you change it?). This is because she has parameters. These parameters, besides making it a cardinal crime to step on cracks in the sidewalk, also dictate that potential paramours for Taiga are off-limits. Not for consideration.
Whistling tunelessly, swinging her arms as she walks to school, she grins and waves as she spots Taiga and Ryuuji walking to school together.
"Mi-no-riiin~~" calls out Taiga, and takes a flying leap into her arms. "Ah, I missed you~~" Taiga says as she snuggles into Minori's chest, a little more closely than necessary, as Ryuuji looks on in a kind of jealous horror.
Minori laughs.
"There, there," she murmurs, and pats Taiga's golden head. Yes, "bros before hos" would have to do. Despite the crudity, it had more charm that any other equivalent adjusted for gender.