I'm looking for a bl

So, I swear I remember reading this manga/manwha where there's a teacher (I think he's a biology teacher??), another teacher (maybe gym- I don't remember his sorry ToT), and a student (so teach x teach x student); and the bio teacher has glasses- but anyway, both the bio teacher and the student are crushing on the other teacher. They end up as a thruple if I remember right - idk it's been a hot minute. But the two who were crushing had a point where they were messing around trying to get an answer from the main male lead, and they have this discussion about how each of them bring out different expressions or how the mml "blooms" only when both of them are there. And there's an outdoor scene (like in a greenhouse). Idk if any of this rings any bells or not but I'm so confused cause I just haven't been able to find it and I'm gaslighting myself that it never existed lol