So I don't know if it's my Wattpad warped brain or not but profxstud and teachxstud is def my favorite genre to read so I think this could go a few different ways.
Yuna who is a ray of sunshine but also hiding an awful family life does indeed end up with the grump ice queen crush of hers. It's a strong pairing that just works. and Ms H ends up with her not lover when she shows back up.
Yuna talks to her crush a few times and realizes what she feels is more superficial and realizes she doesn't actually love her afterall. And Ms H loses her friend for never showing up again or they stay in some stagnant thing they're in now.
This is the one I think might actually happen. Yuna confesses to her crush gets turned down because that woman is an ice queen that seems to be quite blunt, Yuna ends up heartbroken, which then leads to Ms H having Aki? Or whatever her name is return either pregnant or telling Yuna she's getting married because she met someone which in turn also breaks Ms H's heart.
And together Yuna and Ms H bond together and those two are the actual end game and end up together finding comfort in each other and eventually falling for each other after she graduates.
Though with the name of the manga itself it does seem like were getting two relationships? Or this just ends up in subtext hell for Yuna and nothing comes from either side and nothing resolves for Ms. H either.
Though not much has happened we've only had four chapters and this story seems to be something that could stretch for a bit nothing is really being rushed so only time will tell.