stereotypical shoujo manga where the couple is lovey dovey together forever happily ever after, but the problem is that it does basically follow that plot. The humor was terrible, the conflict was expected (read enough shoujo in this lifetime that there was nothing out of expectations), the biggest plot twist was that the girlfriend actually shaped up after dumping the MC somehow without maturing at all (she became a caricature of what I'm guessing the author thought should be "best girl" after getting back together with the MC, beautiful and dotingly clingy, with no layers beyond some jealousy and wanting to be spoiled)
If you break up, stay broken up, don't go "but I love him/her", you will get over it in time. Spare yourself the emotional exhaustion, please. The characters are in high school, so it's still excusable, but if you're older than them and think this is #goals, please don't date someone who fits this story, you won't learn anything from it besides how to waste your energy making yourself more exhausted. Or die! That female lead is definitely a yandere, and while that lends an interesting twist, it didn't amount to much. Do you actually want anyone to die? No, but if this story turned to her life after trying to make a move on someone else's in the name of jealousy, it would have been more interesting.