The manga has definitely been trending towards actual yuri rather than just yuri subtext. That said, someone needs to let them know what they're feeling is love.I swear I thought VigneXGab was more maternal before this chapter. Now well... it’s probably not so. Though it’s also more likely to be GabXVigne, with Vigne as the commuting wife. X)
There's also "Master" at the café that Gabriel works at part time and Satanichia's father appeared in a couple more chapters last year so he counts as a recurring male character.Didn't fell for it.
Bald teacher will forever remain as the sole male character.